1
COMEDK 2024 Morning Shift
+1
-0

A ray of light travelling through a medium of refractive index $$\frac{5}{4}$$ is incident on a glass of refractive index $$\frac{3}{2}$$. Find the angle of refraction in the glass, if the angle of incidence at the given medium - glass interface is $$30^{\circ}$$.

A
$$\sin ^{-1}\left(\frac{1}{2}\right)$$
B
$$\sin ^{-1}\left(\frac{1}{3}\right)$$
C
$$\sin ^{-1}\left(\frac{5}{12}\right)$$
D
$$\sin ^{-1}\left(\frac{6}{5}\right)$$
2
COMEDK 2023 Morning Shift
+1
-0

An air bubble in water $$\left(\mu=\frac{4}{3}\right)$$ is shown in figure. The apparent depth of the image of the bubble in plane mirror viewed by observer is.

A
16 cm
B
18 cm
C
24 cm
D
12 cm
3
COMEDK 2023 Morning Shift
+1
-0

A fish in water (refractive index $$n$$ ) looks at a bird vertically above in the air. If $$y$$ is the height of the bird and $$x$$ is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is

A
$$x+y\left(1-\frac{1}{n}\right)$$
B
$$x+n y$$
C
$$x+y\left(1+\frac{1}{n}\right)$$
D
$$y+x\left(1-\frac{1}{n}\right)$$
4
COMEDK 2023 Evening Shift
+1
-0

The critical angle of a medium having the refractive index $$\sqrt2$$ is :

A
30$$^\circ$$
B
45$$^\circ$$
C
60$$^\circ$$
D
90$$^\circ$$
EXAM MAP
Medical
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