Solveeit Logo
Login

Question

Physics Question on Ray optics and optical instruments

An isosceles prism of angle 120? has a refractive index of 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. The rays emerging from the opposite faces

A

are parallel to each other

B

are diverging

C

make an angle 2[sin⁡−1 (0.72)−30?]2[\sin^{-1} \, (0.72) - 30?] with each other

D

make an angle 2 sin⁡−1 (0.72)2\, \sin^{-1} \, (0.72) with each other

Answer

make an angle 2[sin⁡−1 (0.72)−30?]2[\sin^{-1} \, (0.72) - 30?] with each other

Explanation

Solution

sin⁡isin⁡r=sin⁡30∘sin⁡r\frac{\sin i}{\sin r} =\frac{\sin 30^\circ}{\sin r}
11.44=sin⁡30∘sin⁡r\frac{1}{1.44} = \frac{\sin 30^\circ}{\sin r}