COMEDK 2024 Morning Shift | Ray Optics Question 12 | Physics

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 $$30^{\circ}$$.

$$\sin ^{-1}\left(\frac{1}{2}\right)$$

$$\sin ^{-1}\left(\frac{1}{3}\right)$$

$$\sin ^{-1}\left(\frac{5}{12}\right)$$

$$\sin ^{-1}\left(\frac{6}{5}\right)$$

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

-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.

COMEDK 2023 Morning Shift Physics - Ray Optics Question 18 English

16 cm

18 cm

24 cm

12 cm

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

-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

$$x+y\left(1-\frac{1}{n}\right)$$

$$x+n y$$

$$x+y\left(1+\frac{1}{n}\right)$$

$$y+x\left(1-\frac{1}{n}\right)$$

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

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

30$$^\circ$$

45$$^\circ$$

60$$^\circ$$

90$$^\circ$$

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