# Geometrical Optics · Physics · NEET

Start Practice## MCQ (Single Correct Answer)

NEET 2024 (Re-Examination)

Given below are two statements:
Statement I : Image formation needs regular reflection and/or refraction.
Statement II : The variety in colour of obje...

NEET 2024

A light ray enters through a right angled prism at point $$P$$ with the angle of incidence $$30^{\circ}$$ as shown in figure. It travels through the p...

NEET 2024

A small telescope has an objective of focal length $$140 \mathrm{~cm}$$ and an eye piece of focal length $$5.0 \mathrm{~cm}$$. The magnifying power of...

NEET 2023 Manipur

A lens is made up of 3 different transparent media as shown in figure. A point object O is placed on its axis beyond $$2f$$. How many real images will...

NEET 2023 Manipur

$$\epsilon_0$$ and $$\mu_0$$ are the electric permittivity and magnetic permeability of free space respectively. If the corresponding quantities of a ...

NEET 2023 Manipur

A horizontal ray of light is incident on the right angled prism with prism angle $$6^{\circ}$$. If the refractive index of the material of the prism i...

NEET 2023 Manipur

An object is mounted on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens placed between these walls...

NEET 2023

Light travels a distance $$\mathrm{x}$$ in time $$t_{1}$$ in air and $$10 \mathrm{x}$$ in time $$t_{2}$$ in another denser medium. What is the critica...

NEET 2023

In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin) ?
...

NEET 2023

Two thin lenses are of same focal lengths $$(f)$$, but one is convex and the other one is concave. When they are placed in contact with each other, th...

NEET 2022 Phase 2

During a cloudy day, a primary and a secondary rainbow may be created, then the :

NEET 2022 Phase 2

An astronomical refracting telescope is being used by an observer to observe planets in normal adjustment. The focal lengths of the objective and eye ...

NEET 2022 Phase 1

A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is

NEET 2022 Phase 1

A light ray falls on a glass surface of refractive index $$\sqrt3$$, at an angle 60$$^\circ$$. The angle between the refracted and reflected rays woul...

NEET 2022 Phase 1

Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 $$\times$$ 108 m/s and 2.0 $$\times$$ 108 m...

NEET 2021

Find the value of the angle of emergence from the prism. Refractive index of the glass is $$\sqrt 3 $$...

NEET 2021

A convex lens 'A' of focal length 20 cm and a concave lens 'B' of focal length 5 cm are kept along the same axis with a distance 'd' between them. If ...

NEET 2021

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since :

NEET 2021

A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal ax...

NEET 2020 Phase 1

A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally from the opposite surf...

NEET 2020 Phase 1

The Brewster's angle ib for an interface should be :

NEET 2019

In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact, what will be angle of refrac...

NEET 2019

Pick the wrong answer in the context with rainbow.

NEET 2019

Two similar thin equi-convex lenses, of focal length f each, are kept coaxially in contact with each other such that the focal length of the combinati...

NEET 2018

The refractive index of the material of a prism
is $$\sqrt 2 $$ and the angle of the prism is 30°. One
of the two refracting surfaces of the prism is
...

NEET 2018

An object is placed at a distance of 40 cm
from a concave mirror of focal length 15 cm.
If the object is displaced through a distance
of 20 cm towards...

NEET 2018

An astronomical refracting telescope will have
large angular magnification and high angular
resolution, when it has an objective lens of

NEET 2017

A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a ...

NEET 2017

A thin prism having refracting angle 10o is made of glass of refractive infex 1.42. This prism is combined with another thin prism of glass of refract...

NEET 2016 Phase 2

Two identical glass ($$\mu $$g = 3/2) equiconvex lenses of focal length $$f$$ each are kept in contact. The space between the two lenses is filled wit...

NEET 2016 Phase 2

An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed fr...

NEET 2016 Phase 2

A person can see clearly objects only when they lie between 50 cm and 400 cm from his eyes . In order to increase the maximum distance of distinct vis...

NEET 2016 Phase 1

Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror]
.tg {border-collapse:collapse;borde...

NEET 2016 Phase 1

The angle of incidence for a ray of light at a refracting surface of a prism is 45o. The angle of prism is 60o. If the ray suffers minimum deviation ...

NEET 2016 Phase 1

A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, t...

AIPMT 2015

A beam of light consisting of red, green and blue colours is incifent on a right angled prism. The refractive index of the material of the prism for t...

AIPMT 2015

In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a r...

AIPMT 2015 Cancelled Paper

The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is

AIPMT 2015 Cancelled Paper

Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of 20 cm are placed with their convex surfaces in ...

AIPMT 2014

The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2 A on the first surface returns ba...

AIPMT 2014

If the focal length of objective lens is increased then magnifying power of

NEET 2013 (Karnataka)

Two plane mirrors are inclined at 70o. A ray incident on one mirror at angle, $$\theta $$ after reflection falls on second mirror and is reflected fro...

NEET 2013

A plano convex lens fits exactly into a plano concave lens. Their plane surfaces are parallel to each other. If lenses are made of different materials...

NEET 2013

For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behinf the cornea is 20 D. Usin...

AIPMT 2012 Mains

For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index.

AIPMT 2012 Mains

A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that its enf closer to the pole is 20 cm a...

AIPMT 2012 Prelims

When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that the liquid must...

AIPMT 2012 Prelims

A ray of light is incident at an angle of incidence i, on one face of a prism of angle A (assumed to be small ) and emerges normally from the opposite...

AIPMT 2012 Prelims

A concave mirror of focal length $$f$$1 is placed at a distance of d from a convex lens of focal length $$f$$2. A beam of light coming from infinity a...

AIPMT 2012 Prelims

The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is 20 cm. The focal le...

AIPMT 2011 Mains

A converging beam of rays is incident on a diverging lens. Having passed through the lens the rays intersect at a point 15 cm from the lens on the opp...

AIPMT 2011 Mains

A thin prism of angle 15o made of glass of refractive index $$\mu $$1 = 1.5 is combined with another prism of glass of refractive index $$\mu $$2 = 1....

AIPMT 2011 Prelims

Which of the following is not due to total internal reflection ?

AIPMT 2011 Prelims

A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of the following options describe best the image formed of an object of height...

AIPMT 2010 Mains

The speed of light in media M1 and M2 are 1.5 $$ \times $$ 108 m/s and 2.0 $$ \times $$ 108 m/s respectively. A ray of light enters from medium M1 to ...

AIPMT 2010 Mains

A rays of light is incident on a 60o prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the p...

AIPMT 2010 Prelims

A ray of light travelling in a transparent medium of refractive index $$\mu $$, falls on a surface separating the medium from air at an angle of incid...

AIPMT 2010 Prelims

A lens having focal length f and aperture of diameter d forms an image of intensity I. Aperture of diameter $${d \over 2}$$ in central region of lens ...

AIPMT 2008

Two thin lenses of focal lengths f1 and f2 are in contact and coaxial. The power of the combination is

AIPMT 2008

A boy is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10 cm. The diameter of the sun is 1...

AIPMT 2007

A small coin is resting on the bottom of a beaker filled with liquid . A ray of light from the coin travels upto the surface of the liquid and moves a...

AIPMT 2006

A microscope is focussed on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. Ho...

AIPMT 2006

A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of...

AIPMT 2004

The refractive index of the material of a prism is $$\sqrt 2 $$ and its refracting angle is 30o. One of the refracting surfaces of the prism is made a...

AIPMT 2004

A beam of light composed of red and green ray is incident obliquely at a point on the face of rectangular glass slab. When coming out on the opposite ...

AIPMT 2003

A convex lens is dipped in a liquid whose refractive index is equal to the refractive index of the lens. Then its focal length will

AIPMT 2003

An equiconvex lens is cut into two halves along (i) XOX' and (ii) YOY' as shown in the figure. Let $$f,f',$$ $$f''$$ be the focal lengths of the c...

AIPMT 2002

A bulb is located on a wall. Its image is to be obtained on a parallel wall with the help of convex lens. The lens is placed at a distance d ahead of ...

AIPMT 2002

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter...

AIPMT 2002

For the given incident ray as shown in figure, the condition of total internal refraction of this ray the required refractive index of prism will be
...

AIPMT 2001

Optical fibre are based on

AIPMT 2001

A disc is placed on a surface of pond which has refractive index 5/3. A source of light is placed 4 m below the surface of liquid. The minimum radius ...

AIPMT 2000

A bubble in glass slab ($$\mu $$ = 1.5) when viewed from one side appears at 5 cm and 2 cm from other side, then thickness of slab is

AIPMT 2000

Rainbow is formed due to

AIPMT 2000

For a plano convex lens ($$\mu $$ = 1.5) has radius of curvature 10 cm. It is silvered on its plane surface. Find focal length after silvering

AIPMT 2000

A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be