1
JEE Main 2023 (Online) 25th January Evening Shift
+4
-1 The light rays from an object have been reflected towards an observer from a standard flat mirror, the image observed by the observer are :-

A. Real

B. Erect

C. Smaller in size then object

D. Laterally inverted

Choose the most appropriate answer from the options given below :

A
B and D only
B
A, C, and D only
C
A and D only
D
B and C only
2
JEE Main 2023 (Online) 25th January Morning Shift
+4
-1 In Young's double slits experiment, the position of 5$$\mathrm{^{th}}$$ bright fringe from the central maximum is 5 cm. The distance between slits and screen is 1 m and wavelength of used monochromatic light is 600 nm. The separation between the slits is :

A
60 $$\mu$$m
B
48 $$\mu$$m
C
36 $$\mu$$m
D
12 $$\mu$$m
3
JEE Main 2023 (Online) 24th January Evening Shift
+4
-1 When a beam of white light is allowed to pass through convex lens parallel to principal axis, the different colours of light converge at different point on the principle axis after refraction. This is called :

A
Spherical aberration
B
Scattering
C
Polarisation
D
Chromatic aberration
4
JEE Main 2023 (Online) 24th January Morning Shift
+4
-1 Given below are two statements :

Statement I : If the Brewster's angle for the light propagating from air to glass is $$\mathrm{\theta_B}$$, then the Brewster's angle for the light propagating from glass to air is $$\frac{\pi}{2}-\theta_B$$

Statement II : The Brewster's angle for the light propagating from glass to air is $${\tan ^{ - 1}}({\mu _\mathrm{g}})$$ where $$\mathrm{\mu_g}$$ is the refractive index of glass.

In the light of the above statements, choose the correct answer from the options given below :

A
Both Statement I and Statement II are false
B
Both Statement I and Statement II are true
C
Statement I is false but Statement II is true
D
Statement I is true but Statement II is false
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