1
JEE Advanced 2025 Paper 2 Online
MCQ (More than One Correct Answer)
+4
-2
Change Language

Two identical concave mirrors each of focal length f are facing each other as shown in the schematic diagram. The focal length f is much larger than the size of the mirrors. A glass slab of thickness t and refractive index n_0 is kept equidistant from the mirrors and perpendicular to their common principal axis. A monochromatic point light source S is embedded at the center of the slab on the principal axis, as shown in the schematic diagram. For the image to be formed on S itself, which of the following distances between the two mirrors is/are correct:

JEE Advanced 2025 Paper 2 Online Physics - Geometrical Optics Question 2 English
A

$4f + \left(1 - \frac{1}{n_0}\right)t$

B

$2f + \left(1 - \frac{1}{n_0}\right)t$

C

$4f + (n_0 - 1)t$

D

$2f + (n_0 - 1)t$

2
JEE Advanced 2024 Paper 1 Online
MCQ (More than One Correct Answer)
+4
-2
Change Language

A glass beaker has a solid, plano-convex base of refractive index 1.60, as shown in the figure. The radius of curvature of the convex surface (SPU) is $9 \mathrm{~cm}$, while the planar surface (STU) acts as a mirror. This beaker is filled with a liquid of refractive index $n$ up to the level QPR. If the image of a point object $\mathrm{O}$ at a height of $h$ (OT in the figure) is formed onto itself, then, which of the following option(s) is(are) correct?

JEE Advanced 2024 Paper 1 Online Physics - Geometrical Optics Question 6 English
A
For $n=1.42, h=50 \mathrm{~cm}$.
B
For $n=1.35, h=36 \mathrm{~cm}$.
C
For $n=1.45, h=65 \mathrm{~cm}$.
D
For $n=1.48, h=85 \mathrm{~cm}$.
3
JEE Advanced 2023 Paper 2 Online
MCQ (More than One Correct Answer)
+4
-2
Change Language
A monochromatic light wave is incident normally on a glass slab of thickness $d$, as shown in the figure. The refractive index of the slab increases linearly from $n_1$ to $n_2$ over the height $h$. Which of the following statement(s) is(are) true about the light wave emerging out of the slab?

JEE Advanced 2023 Paper 2 Online Physics - Geometrical Optics Question 8 English
A
It will deflect up by an angle $\tan ^{-1}\left[\frac{\left(n_2^2-n_1^2\right) d}{2 h}\right]$.
B
It will deflect up by an angle $\tan ^{-1}\left[\frac{\left(n_2-n_1\right) d}{h}\right]$.
C
It will not deflect.
D
The deflection angle depends only on $\left(n_2-n_1\right)$ and not on the individual values of $n_1$ and $n_2$.
4
JEE Advanced 2023 Paper 1 Online
MCQ (More than One Correct Answer)
+4
-2
Change Language
A plane polarized blue light ray is incident on a prism such that there is no reflection from the surface of the prism. The angle of deviation of the emergent ray is $\delta=60^{\circ}$ (see Figure-1). The angle of minimum deviation for red light from the same prism is $\delta_{\min }=30^{\circ}$ (see Figure-2). The refractive index of the prism material for blue light is $\sqrt{3}$. Which of the following statement(s) is(are) correct?

JEE Advanced 2023 Paper 1 Online Physics - Geometrical Optics Question 9 English
A
The blue light is polarized in the plane of incidence.
B
The angle of the prism is $45^{\circ}$.
C
The refractive index of the material of the prism for red light is $\sqrt{2}$.
D
The angle of refraction for blue light in air at the exit plane of the prism is $60^{\circ}$.
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