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## Ray & Wave Optics

### Physics

#### Previous Years Questions

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Light enters from air into a given medium at an angle of $$45^{\circ}$$ with interface of the air-medium surface. After ...
JEE Main 2022 (Online) 29th July Evening Shift
An unpolarised light beam of intensity $$2 I_{0}$$ is passed through a polaroid P and then through another polaroid Q wh...
JEE Main 2022 (Online) 29th July Evening Shift
The power of a lens (biconvex) is $$1.25 \mathrm{~m}^{-1}$$ in particular medium. Refractive index of the lens is 1.5 an...
JEE Main 2022 (Online) 28th July Evening Shift
In normal adujstment, for a refracting telescope, the distance between objective and eye piece is $$30 \mathrm{~cm}$$. T...
JEE Main 2022 (Online) 28th July Morning Shift
As shown in the figure, after passing through the medium 1 . The speed of light $$v_{2}$$ in medium 2 will be : $$\left(... JEE Main 2022 (Online) 28th July Morning Shift Two coherent sources of light interfere. The intensity ratio of two sources is$$1: 4$$. For this interference pattern i... JEE Main 2022 (Online) 27th July Evening Shift A microscope was initially placed in air (refractive index 1). It is then immersed in oil (refractive index 2). For a li... JEE Main 2022 (Online) 27th July Morning Shift Light travels in two media$$M_{1}$$and$$M_{2}$$with speeds$$1.5 \times 10^{8} \mathrm{~ms}^{-1}$$and$$2.0 \times ...
JEE Main 2022 (Online) 26th July Evening Shift
In Young's double slit experiment, the fringe width is $$12 \mathrm{~mm}$$. If the entire arrangement is placed in water...
JEE Main 2022 (Online) 26th July Morning Shift
For an object placed at a distance 2.4 m from a lens, a sharp focused image is observed on a screen placed at a distance...
JEE Main 2022 (Online) 25th July Evening Shift
Time taken by light to travel in two different materials $$A$$ and $$B$$ of refractive indices $$\mu_{A}$$ and $$\mu_{B}... JEE Main 2022 (Online) 25th July Morning Shift Which of the following statement is correct? JEE Main 2022 (Online) 25th July Morning Shift Find the ratio of maximum intensity to the minimum intensity in the interference pattern if the widths of the two slits ... JEE Main 2022 (Online) 30th June Morning Shift Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and ... JEE Main 2022 (Online) 24th June Evening Shift The difference of speed of light in the two media A and B (vA$$-$$vB) is 2.6$$\times$$107 m/s. If the refractive ind... JEE Main 2022 (Online) 25th June Morning Shift A light wave travelling linearly in a medium of dielectric constant 4, incidents on the horizontal interface separating... JEE Main 2022 (Online) 25th June Morning Shift The two light beams having intensities I and 9I interfere to produce a fringe pattern on a screen. The phase difference ... JEE Main 2022 (Online) 25th June Morning Shift A light whose electric field vectors are completely removed by using a good polaroid, allowed to incident on the surface... JEE Main 2022 (Online) 25th June Evening Shift The interference pattern is obtained with two coherent light sources of intensity ratio 4 : 1. And the ratio$${{{I_{\ma...
JEE Main 2022 (Online) 25th June Evening Shift
In free space, an electromagnetic wave of 3 GHz frequency strikes over the edge of an object of size $${\lambda \over {... JEE Main 2022 (Online) 26th June Morning Shift Consider a light ray travelling in air is incident into a medium of refractive index$$\sqrt{2n}$$. The incident angle i... JEE Main 2022 (Online) 27th June Morning Shift A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves)... JEE Main 2022 (Online) 27th June Evening Shift The aperture of the objective is 24.4 cm. The resolving power of this telescope, if a light of wavelength 2440$$\mathop...
JEE Main 2022 (Online) 28th June Morning Shift
The refracting angle of a prism is A and refractive index of the material of the prism is cot (A/2). Then the angle of m...
JEE Main 2022 (Online) 28th June Morning Shift
In Young's double slit experiment performed using a monochromatic light of wavelength $$\lambda$$, when a glass plate ($... JEE Main 2022 (Online) 28th June Evening Shift The speed of light in media 'A' and 'B' are $$2.0 \times {10^{10}}$$ cm/s and $$1.5 \times {10^{10}}$$ cm/s respectively... JEE Main 2022 (Online) 29th June Evening Shift Using Young's double slit experiment, a monochromatic light of wavelength 5000 $$\mathop A\limits^o$$ produces fringes ... JEE Main 2022 (Online) 29th June Morning Shift A glass tumbler having inner depth of 17.5 cm is kept on a table. A student starts pouring water ($$\mu$$ = 4/3) into it... JEE Main 2021 (Online) 1st September Evening Shift Two plane mirrors M1 and M2 are at right angle to each other shown. A point source 'P' is placed at 'a' and '2a' meter a... JEE Main 2021 (Online) 31st August Morning Shift The light waves from two coherent sources have same intensity I1 = I2 = I0. In interference pattern the intensity of lig... JEE Main 2021 (Online) 27th August Evening Shift Curved surfaces of a plano-convex lens of refractive index $$\mu$$1 and a plano-concave lens of refractive index $$\mu$$... JEE Main 2021 (Online) 27th August Evening Shift Find the distance of the image from object O, formed by the combination of lenses in the figure :... JEE Main 2021 (Online) 27th August Morning Shift An object is placed beyond the centre of curvature C of the given concave mirror. If the distance of the object is d1 fr... JEE Main 2021 (Online) 27th August Morning Shift Car B overtakes another car A at a relative speed of 40 ms$$-$$1. How fast will the image of car B appear to move in the... JEE Main 2021 (Online) 26th August Morning Shift The expected graphical representation of the variation of angle of deviation '$$\delta$$' with angle of incidence 'i' in... JEE Main 2021 (Online) 27th July Evening Shift In Young's double slit experiment, if the source of light changes from orange to blue then : JEE Main 2021 (Online) 27th July Morning Shift The relative permittivity of distilled water is 81. The velocity of light in it will be :(Given $$\mu$$r = 1)... JEE Main 2021 (Online) 27th July Morning Shift A ray of light entering from air into a denser medium of refractive index $${4 \over 3}$$, as shown in figure. The light... JEE Main 2021 (Online) 25th July Evening Shift A prism of refractive index $$\mu$$ and angle of prism A is placed in the position of minimum angle of deviation. If min... JEE Main 2021 (Online) 25th July Evening Shift In the Young's double slit experiment, the distance between the slits varies in time as d(t) = d0 + a0 sin$$\omega$$t; w... JEE Main 2021 (Online) 25th July Morning Shift A ray of laser of a wavelength 630 nm is incident at an angle of 30$$^\circ$$ at the diamond-air interface. It is going ... JEE Main 2021 (Online) 25th July Morning Shift A ray of light passes from a denser medium to a rarer medium at an angle of incidence i. The reflected and refracted ray... JEE Main 2021 (Online) 22th July Evening Shift With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength 5890 $$\matho... JEE Main 2021 (Online) 20th July Evening Shift Region I and II are separated by a spherical surface of radius 25 cm. An object is kept in region I at a distance of 40 ... JEE Main 2021 (Online) 20th July Morning Shift Three rays of light, namely red (R), green (G) and blue (B) are incident on the face PQ of a right angled prism PQR as s... JEE Main 2021 (Online) 18th March Evening Shift Your friend is having eye sight problem. She is not able to see clearly a distant uniform window mesh and it appears to ... JEE Main 2021 (Online) 18th March Morning Shift In Young's double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at a distance of 0.... JEE Main 2021 (Online) 18th March Morning Shift The thickness at the centre of a plane convex lens is 3 mm and the diameter is 6 cm. If the speed of light in the materi... JEE Main 2021 (Online) 17th March Morning Shift Red light differs from blue light as they have : JEE Main 2021 (Online) 16th March Evening Shift The refractive index of a converging lens is 1.4. What will be the focal length of this lens if it is placed in a medium... JEE Main 2021 (Online) 16th March Evening Shift The angle of deviation through a prism is minimum when(A) Incident ray and emergent ray are symmetric to the prism.(B) T... JEE Main 2021 (Online) 16th March Morning Shift Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R.Assertion A : For a ... JEE Main 2021 (Online) 26th February Evening Shift The incident ray, reflected ray and the outward drawn normal are denoted by the unit vectors$$\overrightarrow a $$,$$\... JEE Main 2021 (Online) 26th February Evening Shift In a Young's double slit experiment two slits are separated by 2 mm and the screen is placed one meter away. When a ligh... JEE Main 2021 (Online) 26th February Morning Shift A short straight object of height 100 cm lies before the central axis of a spherical mirror whose focal length has absol... JEE Main 2021 (Online) 26th February Morning Shift Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter 0.1 $$\mu$$m. If the diame... JEE Main 2021 (Online) 25th February Evening Shift Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio $${{{I_{\max }} -... JEE Main 2021 (Online) 25th February Morning Slot If the source of light used in a Young's double slit experiment is changed from red to violet : JEE Main 2021 (Online) 24th February Evening Slot In a Young's double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of th... JEE Main 2021 (Online) 24th February Morning Slot The focal length f is related to the radius of curvature r of the spherical convex mirror by : JEE Main 2021 (Online) 24th February Morning Slot A double convex lens has power P and same radii of curvature R of both the surfaces. The radius of curvature of a surfac... JEE Main 2020 (Online) 6th September Evening Slot In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separat... JEE Main 2020 (Online) 6th September Morning Slot A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is pl... JEE Main 2020 (Online) 6th September Morning Slot For a concave lens of focal length f, the relation between object and image distances u and v, respectively, from its po... JEE Main 2020 (Online) 5th September Morning Slot Two light waves having the same wavelength$$\lambda $$in vacuum are in phase initially. Then the first wave travels a ... JEE Main 2020 (Online) 3rd September Evening Slot In a Young’s double slit experiment, light of 500 nm is used to produce an interference pattern. When the distance betwe... JEE Main 2020 (Online) 3rd September Morning Slot In a Young’s double slit experiment, 16 fringes are observed in a certain segment of the screen when light of a waveleng... JEE Main 2020 (Online) 2nd September Evening Slot A spherical mirror is obtained as shown in the figure from a hollow glass sphere. If an object is positioned in front o... JEE Main 2020 (Online) 2nd September Morning Slot Interference fringes are observed on a screen by illuminating two thin slits 1 mm apart with a light source ($$\lambda$...
JEE Main 2020 (Online) 2nd September Morning Slot
A beam of plane polarised light of large cross-sectional area and uniform intensity of 3.3 Wm-2 falls normally on a pola...
JEE Main 2020 (Online) 4th September Morning Slot
There is a small source of light at some depth below the surface of water (refractive index = $${4 \over 3}$$) in a tank...
JEE Main 2020 (Online) 9th January Evening Slot
The aperture diameter of a telescope is 5m. The separation between the moon and the earth is 4 × 105 km. With light of w...
JEE Main 2020 (Online) 9th January Morning Slot
A vessel of depth 2h is half filled with a liquid of refractive index $$2\sqrt 2$$ and the upper half with another liqu...
JEE Main 2020 (Online) 9th January Morning Slot
An object is gradually moving away from the focal point of a concave mirror along the axis of the mirror. The graphical ...
JEE Main 2020 (Online) 8th January Evening Slot
In a double slit experiment, at a certain point on the screen the path difference between the two interfering waves is $... JEE Main 2020 (Online) 8th January Evening Slot The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeab... JEE Main 2020 (Online) 8th January Morning Slot The magnifying power of a telescope with tube 60 cm is 5. What is the focal length of its eye piece ? JEE Main 2020 (Online) 8th January Morning Slot In a Young's double slit experiment, the separation between the slits is 0.15 mm. in the experiment, a source of light o... JEE Main 2020 (Online) 7th January Evening Slot A thin lens made of glass (refractive index = 1.5) of focal length f = 16 cm is immersed in a liquid of refractive index... JEE Main 2020 (Online) 7th January Evening Slot Visible light of wavelength 6000 $$\times$$ 10-8 cm falls normally on a single slit and produces a diffraction pattern... JEE Main 2020 (Online) 7th January Morning Slot If we need a magnification of 375 from a compound microscope of tube length 150 mm and an objective of focal length 5 mm... JEE Main 2020 (Online) 7th January Morning Slot A polarizer - analyser set is adjusted such that the intensity of light coming out of the analyser is just 10% of the or... JEE Main 2020 (Online) 7th January Morning Slot A system of three polarizers P1, P2, P3 is set up such that the pass axis of P3 is crossed with respect to that of P1. T... JEE Main 2019 (Online) 12th April Evening Slot A transparent cube of side, made of a material of refractive index $$\mu$$2, is immersed in a liquid of refractive inde... JEE Main 2019 (Online) 12th April Evening Slot A concave mirror has radius of curvature of 40 cm. It is at the bottom of a glass that has water filled up to 5 cm (see ... JEE Main 2019 (Online) 12th April Morning Slot In a double slit experiment, when a thin film of thickness t having refractive index $$\mu$$. is introduced in front of... JEE Main 2019 (Online) 12th April Morning Slot The value of numerical aperature of the objective lens of a microscope is 1.25. If light of wavelength 5000 $$\mathop A\... JEE Main 2019 (Online) 12th April Morning Slot The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length o... JEE Main 2019 (Online) 10th April Evening Slot In a Young's double slit experiment, the ratio of the slit's width is 4 : 1. The ratio of the intensity of maxima to min... JEE Main 2019 (Online) 10th April Evening Slot A ray of light AO in vacuum is incident on a glass slab at angle 60° and refracted at angle 30° along OB as shown in the... JEE Main 2019 (Online) 10th April Morning Slot One plano-convex and one plano-concave lens of same radius of curvature 'R' but of different materials are joined side b... JEE Main 2019 (Online) 10th April Morning Slot Diameter of the objective lens of a telescope is 250 cm. For light of wavelength 600nm. coming from a distant object, th... JEE Main 2019 (Online) 9th April Evening Slot A convex lens of focal length 20 cm produces images of the same magnification 2 when an object is kept at two distances ... JEE Main 2019 (Online) 9th April Evening Slot A thin convex lens L (refractive index = 1.5) is placed on a plane mirror M. When a pin is placed at A, such that OA = 1... JEE Main 2019 (Online) 9th April Evening Slot A concave mirror for face viewing has focal length of 0.4 m. The distance at which you hold the mirror from your face in... JEE Main 2019 (Online) 9th April Morning Slot The figure shows a Young's double slit experimental setup. It is observed that when a thin transparent sheet of thicknes... JEE Main 2019 (Online) 9th April Morning Slot A convex lens (of focal length 20 cm) and a concave mirror, having their principal axes along the same lines, are kept 8... JEE Main 2019 (Online) 8th April Evening Slot Calculate the limit of resolution of a telescope objective having a diameter of 200 cm, if it has to detect light of wav... JEE Main 2019 (Online) 8th April Evening Slot In an interference experiment the ratio of amplitudes of coherent waves is$${{{a_1}} \over {{a_2}}} = {1 \over 3}$$. T... JEE Main 2019 (Online) 8th April Morning Slot In figure, the optical fiber is$$l$$= 2m long and has a diameter of d = 20 μm. If a ray of light is incident on one en... JEE Main 2019 (Online) 8th April Morning Slot An upright object is placed at a distance of 40 cm in front of a convergent lens of focal length 20 cm. A convergent mir... JEE Main 2019 (Online) 8th April Morning Slot Formation of real image using a biconvex lens is shown below : If the whole set up is immersed in water without disturb... JEE Main 2019 (Online) 12th January Evening Slot A plano-convex lens (focal length f2, refractive index$$\mu $$2, radius of curvature R) fits exactly into a plano-conca... JEE Main 2019 (Online) 12th January Evening Slot What is the position and nature of image formed by lens combination shown in figure ? (f1, f2 are focal lengths) ... JEE Main 2019 (Online) 12th January Morning Slot A point source of light, S is placed at distance L in front of the centre of plane mirror of width d which is hanging ve... JEE Main 2019 (Online) 12th January Morning Slot A light wave is incident normally on a glass slab of refractive index 1.5. If 4 % of light gets reflected and the amplit... JEE Main 2019 (Online) 12th January Morning Slot A monochromatic light is incident at a certain angle on an equilateral triangular prism and suffers minimum deviation. I... JEE Main 2019 (Online) 11th January Evening Slot In a double-slit experiment, green light (5303$$\mathop A\limits^ \circ $$) falls on a double slit having a separation ... JEE Main 2019 (Online) 11th January Evening Slot The variation of refractive index of a crown glass thin prism with wavelength of the incident light is shown. Which of t... JEE Main 2019 (Online) 11th January Morning Slot An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If t... JEE Main 2019 (Online) 11th January Morning Slot In a Young's double slit experiment, the path difference, at a certain point on the screen, between two interfering wave... JEE Main 2019 (Online) 11th January Morning Slot Consider a Young’s double slit experiment as shown in figure. What should be the slit separation d in terms of wavelengt... JEE Main 2019 (Online) 10th January Evening Slot The eye can be regarded as a single refracting surface. The radius of curvature of this surface is equal to that of corn... JEE Main 2019 (Online) 10th January Evening Slot A plano convex lens of refractive index$$\mu $$1 and focal length ƒ1 is kept in contact with another plano concave lens... JEE Main 2019 (Online) 10th January Morning Slot In a Young’s double slit experiment with slit separation 0.1 mm, one observes a bright fringe at angle$${1 \over {40}}... JEE Main 2019 (Online) 10th January Morning Slot Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M1) and parallel to ... JEE Main 2019 (Online) 9th January Evening Slot In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength $$\lambda$$ = 500 nm is i... JEE Main 2019 (Online) 9th January Evening Slot Consider a tank made of glass(refractive index 1.5) with a thick bottom. It is filled with a liquid of refractive index ... JEE Main 2019 (Online) 9th January Morning Slot A convex lens is put 10 cm from a light source and it makes a sharp image on a screen, kept 10 cm from the lens. Now a g... JEE Main 2019 (Online) 9th January Morning Slot Unpolarized light of intensity I is incident on a system of two polarizers, A followed by B. The intensity of emergent ... JEE Main 2018 (Online) 16th April Morning Slot A ray of light is incident at an angle of 60o on one face of a prism of angle 30o. The emergent ray of light makes an a... JEE Main 2018 (Online) 16th April Morning Slot A convergent doublet of separated lenses, corrected for spherical aberration, has resultant focal length of 10 cm. The s... JEE Main 2018 (Online) 15th April Evening Slot A plane polarized light is incident on a polariser with its pass axis aking angle $$\theta$$ with x-axis, as shown in t... JEE Main 2018 (Online) 15th April Evening Slot A particle is oscillating on the $$X$$-axis with an amplitude $$2$$ $$cm$$ about the point $${x_0} = 10\,cm,$$ with a fr... JEE Main 2018 (Online) 15th April Morning Slot A planoconvex lens becomes an optical system of $$28$$ $$cm$$ focal length when its plane surface is silvered and illumi... JEE Main 2018 (Online) 15th April Morning Slot Light of wavelength $$550$$ $$nm$$ falls normally on a slit of width $$22.0 \times {10^{ - 5}}$$ $$cm.$$ The angular pos... JEE Main 2018 (Online) 15th April Morning Slot Unpolarized light of intensity I passes through an ideal polarizer A. Another identical polarizer B is placed behind A. ... JEE Main 2018 (Offline) The angular width of the central maximum in a single slit diffraction pattern is 60°. The width of the slit is 1 $$\mu ... JEE Main 2018 (Offline) A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000$$\mathop A\limits^ \circ$...
JEE Main 2017 (Online) 9th April Morning Slot
In an experiment a convex lens of focal length 15 cm is placed coaxially on an optical bench in front of a convex mirror...
JEE Main 2017 (Online) 9th April Morning Slot
A single slit of width b is illuminated by a coherent monochromatic light of wavelength $$\lambda$$. If the second and...
JEE Main 2017 (Online) 8th April Morning Slot
Let the refractive index of a denser medium with respect to a rarer medium be n12 and its critical angle be θC . At an a...
JEE Main 2017 (Online) 8th April Morning Slot
A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15cm from a converging lens of magnitud...
JEE Main 2017 (Offline)
An observer is moving with half the speed of light towards a stationary microwave source emitting waves at frequency 10 ...
JEE Main 2017 (Offline)
In a Young’s double slit experiment, slits are separated by 0.5 mm, and the screen is placed 150 cm away. A beam of ligh...
JEE Main 2017 (Offline)
Arrange the following electromagnetic radiations per quantum in the order of increasing energy : A : Blue light&nbsp;&nb...
JEE Main 2016 (Offline)
A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface. A small air bubbl...
JEE Main 2016 (Online) 10th April Morning Slot
To determine refractive index of glass slab using a travelling microscope, minimum number of readings required are :
JEE Main 2016 (Online) 10th April Morning Slot
Two stars are 10 light years away from the earth. They are seen through a telescope of objective diameter 30 cm. The wav...
JEE Main 2016 (Online) 10th April Morning Slot
A convex lens, of focal length 30 cm, a concave lens of focal length 120 cm, and aplane mirror are arranged as shown. Fo...
JEE Main 2016 (Online) 9th April Morning Slot
To find the focal length of a convex mirror, a student records the following data : .tg {border-collapse:collapse;bord...
JEE Main 2016 (Online) 9th April Morning Slot
In Young’s double slit experiment, the distance between slits and the screen is 1.0 m and monochromatic light of 600 nm ...
JEE Main 2016 (Online) 9th April Morning Slot
An observer looks at a distant tree of height $$10$$ $$m$$ with a telescope of magnifying power of $$20.$$ To the observ...
JEE Main 2016 (Offline)
In an experiment for determination of refractive index of glass of a prism by $$i - \delta ,$$ plot it was found thata r...
JEE Main 2016 (Offline)
The box of a pin hole camera, of length $$L,$$ has a hole of radius a. It is assumed that when the hole is illuminated b...
JEE Main 2016 (Offline)
Monochromatic light is incident on a glass prism of angle $$A$$. If the refractive index of the material of the prism is...
JEE Main 2015 (Offline)
Assuming human pupil to have a radius of $$0.25$$ $$cm$$ and a comfortable viewing distance of $$25$$ $$cm$$, the minimu...
JEE Main 2015 (Offline)
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the grou...
JEE Main 2015 (Offline)
A green light is incident from the water to the air - water interface at the critical angle $$\left( \theta \right)$$. ...
JEE Main 2014 (Offline)
Two beams, $$A$$ and $$B$$, of plane polarized light with mutually perpendicular planes of polarization are seen through...
JEE Main 2014 (Offline)
A thin convex lens made from crown glass $$\left( {\mu = {3 \over 2}} \right)$$ has focal length $$f$$. When it is meas...
JEE Main 2014 (Offline)
The graph between angle of deviation $$\left( \delta \right)$$ and angle of incidence $$(i)$$ for a triangular prism is...
JEE Main 2013 (Offline)
Two coherent point sources $${S_1}$$ and $${S_2}$$ are separated by a small distance $$'d'$$ as shown. The fringes obtai...
JEE Main 2013 (Offline)
Diameter of a plano-convex lens is $$6$$ $$cm$$ and thickness at the center is $$3mm$$. If speed of light in material of...
JEE Main 2013 (Offline)
A beam of unpolarised light of intensity $${{\rm I}_0}$$ is passed through a polaroid $$A$$ and then through another pol...
JEE Main 2013 (Offline)
An object $$2.4$$ $$m$$ in front of a lens forms a sharp image on a film $$12$$ $$cm$$ behind the lens. A glass plate $... AIEEE 2012 An electromagnetic wave in vacuum has the electric and magnetic field $$\mathop E\limits^ \to$$and $$\mathop B\limits^... AIEEE 2012 In Young's double slit experiment , one of the slit is wider than other, so that amplitude of the light from one slit is... AIEEE 2012 A car is fitted with a convex side-view mirror of focal length$$20cm$$. A second car$$2.8m$$behind the first car... AIEEE 2011 This question has a paragraph followed by two statements, Statement$$-1$$and Statement$$-2$$. Of the given four alte... AIEEE 2011 Let$$x$$-$$z$$plane be the boundary between two transparent media. Medium$$1$$in$$z \ge 0$$has a refractive index ... AIEEE 2011 An initially parallel cylindrical beam travels in a medium of refractive index$$\mu \left( I \right) = {\mu _0} + {\mu ... AIEEE 2010 An initially parallel cylindrical beam travels in a medium of refractive index $$\mu \left( I \right) = {\mu _0} + {\mu ... AIEEE 2010 An initially parallel cylindrical beam travels in a medium of refractive index$$\mu \left( I \right) = {\mu _0} + {\mu ... AIEEE 2010 A transparent solid cylindrical rod has a refractive index of $${2 \over {\sqrt 3 }}.$$ It is surrounded by air. A light... AIEEE 2009 In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for e... AIEEE 2009 A mixture of light, consisting of wavelength $$590$$ $$mm$$ and an unknown wavelength, illuminates Young's double slit a... AIEEE 2009 A student measures the focal length of a convex lens by putting an object pin at a distance $$'u'$$ from the lens and me... AIEEE 2008 Two lenses of power $$-15$$ $$D$$ and $$+5$$ $$D$$ are in contact with each other. The focal length of the combination i... AIEEE 2007 In a Young's double slit experiment the intensity at a point where the path difference is $${\lambda \over 6}$$ ( $$\la... AIEEE 2007 The refractive index of a glass is$$1.520$$for red light and$$1.525$$for blue light. Let$${D_1}$$and$${D_2}$$be ... AIEEE 2006 When an unpolarized light of intensity$${{I_0}}$$is incident on a polarizing sheet, the intensity of the light which d... AIEEE 2005 If$${I_0}$$is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its int... AIEEE 2005 A thin glass (refractive index$$1.5$$) lens has optical power of$$-5D$$in air. Its optical power in a liquid med... AIEEE 2005 A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen ... AIEEE 2005 Two point white dots are$$1mm$$apart on a black paper. They are viewed by eye of pupil diameter$$3mm.$$App... AIEEE 2005 A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of w... AIEEE 2005 A light ray is incident perpendicularly to one face of a$${90^ \circ }$$prism and is totally internally reflected at t... AIEEE 2004 The maximum number of possible interference maximum for slit-separation equal to twice the wavelength in Young's double-... AIEEE 2004 An electromagnetic wave of frequency$$v=3.0MHz$$passes from vacuum into a dielectric medium with permittivity$$ ... AIEEE 2004 The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index ... AIEEE 2004 A plano convex lens of refractive index $$1.5$$ and radius of curvature $$30$$ $$cm$$. Is silvered at the curved surface... AIEEE 2004 To get three images of a single object, one should have two plane mirrors at an angle of AIEEE 2003 The image formed by an objective of a compound microscope is AIEEE 2003 To demonstrate the phenomenon of interference, we require two sources which emit radiation AIEEE 2003 which of the following is used in optical fibres? AIEEE 2002 Wavelength of light used in an optical instrument are $${\lambda _1} = 4000\mathop A\limits^ \circ$$ and $${\lambda _... AIEEE 2002 If two mirrors are kept at$${60^ \circ }$$to each other, then the number of images formed by them is AIEEE 2002 Electromagnetic waves are transverse in nature is evident by AIEEE 2002 An astronomical telescope has a large aperture to AIEEE 2002 ## Numerical More The X-Y plane be taken as the boundary between two transparent media$$\mathrm{M}_{1}$$and$$\mathrm{M}_{2}$$.$$\mathr... JEE Main 2022 (Online) 29th July Morning Shift Two light beams of intensities 4I and 9I interfere on a screen. The phase difference between these beams on the screen a... JEE Main 2022 (Online) 29th July Morning Shift In an experiment with a convex lens, The plot of the image distance $$\left(v^{\prime}\right)$$ against the object dista... JEE Main 2022 (Online) 28th July Evening Shift An object 'O' is placed at a distance of $$100 \mathrm{~cm}$$ in front of a concave mirror of radius of curvature $$200 ... JEE Main 2022 (Online) 28th July Evening Shift In a Young's double slit experiment, a laser light of 560 nm produces an interference pattern with consecutive bright fr... JEE Main 2022 (Online) 28th July Morning Shift A thin prism of angle$$6^{\circ}$$and refractive index for yellow light$$\left(\mathrm{n}_{\mathrm{Y}}\right) 1.5$$i... JEE Main 2022 (Online) 27th July Evening Shift Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference b... JEE Main 2022 (Online) 27th July Morning Shift In the given figure, the face$$A C$$of the equilateral prism is immersed in a liquid of refractive index '$$n$$'. For ... JEE Main 2022 (Online) 26th July Evening Shift The graph between$$\frac{1}{u}$$and$$\frac{1}{v}$$for a thin convex lens in order to determine its focal length is p... JEE Main 2022 (Online) 26th July Morning Shift A convex lens of focal length 20 cm is placed in front of a convex mirror with principal axis coinciding each other. The... JEE Main 2022 (Online) 25th July Evening Shift The refractive index of an equilateral prism is$$\sqrt 2 $$. The angle of emergence under minimum deviation position of... JEE Main 2022 (Online) 30th June Morning Shift Sodium light of wavelengths 650 nm and 655 nm is used to study diffraction at a single slit of aperture 0.5 mm. The dist... JEE Main 2022 (Online) 24th June Morning Shift Two identical thin biconvex lens of focal length 15 cm and refractive index 1.5 are in contact with each other. The spac... JEE Main 2022 (Online) 24th June Morning Shift A ray of light is incident at an angle of incidence 60$$^\circ$$on the glass slab of refractive index$$\sqrt3$$. After... JEE Main 2022 (Online) 24th June Evening Shift A small bulb is placed at the bottom of a tank containing water to a depth of$$\sqrt7$$m. The refractive index of wate... JEE Main 2022 (Online) 26th June Evening Shift A light ray is incident, at an incident angle$$\theta$$1, on the system of tow plane mirrors M1 and M2 having an inclin... JEE Main 2022 (Online) 26th June Morning Shift In Young's double slit experiment the two slits are 0.6 mm distance apart. Interference pattern is observed on a screen ... JEE Main 2022 (Online) 27th June Morning Shift In a Young's double slit experiment, an angular width of the fringe is 0.35$$^\circ$$on a screen placed at 2 m away for... JEE Main 2022 (Online) 28th June Evening Shift In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the ... JEE Main 2022 (Online) 29th June Evening Shift A parallel beam of light is allowed to fall on a transparent spherical globe of diameter 30 cm and refractive index 1.5.... JEE Main 2022 (Online) 29th June Morning Shift The width of one of the two slits in a Young's double slit experiment is three times the other slit. If the amplitude of... JEE Main 2021 (Online) 1st September Evening Shift Cross-section view of a prism is the equilateral triangle ABC in the figure. The minimum deviation is observed using thi... JEE Main 2021 (Online) 31st August Evening Shift In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away from the plane of sl... JEE Main 2021 (Online) 31st August Evening Shift An object is placed at a distance of 12 cm from a convex lens. A convex mirror of focal length 15 cm is placed on other ... JEE Main 2021 (Online) 26th August Evening Shift A source of light is placed in front of a screen. Intensity of light on the screen is I. Two Polaroids P1 and P2 are so ... JEE Main 2021 (Online) 26th August Evening Shift White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation between ... JEE Main 2021 (Online) 26th August Morning Shift The difference in the number of waves when yellow light propagates through air and vacuum columns of the same thickness ... JEE Main 2021 (Online) 27th July Evening Shift A prism of refractive index n1 and another prism of refractive index n2 are stuck together (as shown in the figure). n1 ... JEE Main 2021 (Online) 27th July Morning Shift A ray of light passing through a prism ($$\mu$$=$$\sqrt 3 $$) suffers minimum deviation. It is found that the angle of... JEE Main 2021 (Online) 22th July Evening Shift An object viewed from a near point distance of 25 cm, using a microscopic lens with magnification '6', gives an unresolv... JEE Main 2021 (Online) 20th July Morning Shift A galaxy is moving away from the earth at a speed of 286 kms$$-$$1. The shift in the wavelength of a redline at 630 nm i... JEE Main 2021 (Online) 18th March Evening Shift The image of an object placed in air formed by a convex refracting surface is at a distance of 10 m behind the surface. ... JEE Main 2021 (Online) 17th March Evening Shift A deviation of 2$$^\circ$$is produced in the yellow ray when prism of crown and flint glass are achromatically combined... JEE Main 2021 (Online) 16th March Evening Shift A fringe width of 6 mm was produced for two slits separated by 1 mm apart. The screen is placed 10 m away. The wavelengt... JEE Main 2021 (Online) 16th March Morning Shift A point source of light S, placed at a distance 60cm in front of the centre of a plane mirror of width 50 cm, hangs ver... JEE Main 2021 (Online) 26th February Evening Shift The same size images are formed by a convex lens when the object is placed at 20 cm or at 10 cm from the lens. The focal... JEE Main 2021 (Online) 25th February Morning Slot An unpolarised light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emer... JEE Main 2021 (Online) 24th February Morning Slot A Young's double-slit experiment is performed using monochromatic light of wavelength$$\lambda $$. The intensity of lig... JEE Main 2020 (Online) 6th September Evening Slot A prism of angle A = 1o has a refractive index$$\mu $$= 1.5. A good estimate for the minimum angle of deviation (in de... JEE Main 2020 (Online) 5th September Evening Slot A compound microscope consists of an objective lens of focal length 1 cm and an eyepiece of focal length 5 cm with a sep... JEE Main 2020 (Online) 5th September Morning Slot A beam of electrons of energy E scatters from a target having atomic spacing of 1$$\mathop A\limits^o $$. The first max... JEE Main 2020 (Online) 5th September Morning Slot The distance between an object and a screen is 100 cm. A lens can produce real image of the object on the screen for two... JEE Main 2020 (Online) 4th September Evening Slot Orange light of wavelength 6000$$ \times $$10–10 m illuminates a single slit of width 0.6$$ \times $$10–4 m. The max... JEE Main 2020 (Online) 4th September Evening Slot In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal len... JEE Main 2020 (Online) 4th September Morning Slot When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at a distance of 10 cm from the... JEE Main 2020 (Online) 3rd September Evening Slot An observer can see through a small hole on the side of a jar (radius 15 cm) at a point at height of 15 cm from the bott... JEE Main 2020 (Online) 3rd September Morning Slot A light ray enters a solid glass sphere of refractive index$$\mu $$=$$\sqrt 3$\$ at an angle of incidence 60o. The ra...
JEE Main 2020 (Online) 2nd September Evening Slot
In a Young's double slit experiment 15 fringes are observed on a small portion of the screen when light of wavelength 50...
JEE Main 2020 (Online) 9th January Evening Slot
A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved su...
JEE Main 2020 (Online) 8th January Morning Slot

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