Light Deviation in Triangular Prism

A triangular prism with a apex angle of 60° and a refractive index of √2. A ray falls on one of its faces at an angle of 45°. The magnitude of the angle of deviation is .....

• 15°

• 30°

• 45°

• 60°

Light ray falls at an angle of 45° on a triangular prism with a apex angle of 30° and emerges perpendicular to its other face. The angle of deviation is = ...........

• 15°

• 20°

• 25°

• 30°

A light ray falls on one of the faces of an equilateral triangular prism at an angle of 40°, then emergences from the opposite face as shown in the figure. The angle of deviation of the ray is equal to

• 40°

• 60°

• 50°

• 30°

If a light ray falls on the XY face of a triangular prism as shown in the figure. According to the laws of prism, determine the point from which the light ray will emerge.

• A

• B

• C

• D

A triangular prism with a apex angle of 60°, and the angle of incidence from the air on the prism = 60°, and the second angle of incidence in the prism = 27.23° Calculate the value of the refractive index of the prism material.

• 1.59

• 1.2

• 1

• 1.6

In the opposite figure: If the blue ray falls on one face of the prism at point P and the angle of refraction is 23°, then falls on the other face at point Q and the ray emerges tangent to the surface QR, the angle of incidence is ...........

• 40.5°

• 37°

• 45°

• 70.5°

In the opposite figure: If the critical angle of the prism material is 42°, so the value of both the angle of incidence at A and the angle of emergence from the prism are ............., ............ (draw the rays)

• 45°, 0

• 45°, 48°

• 48°, 0°

• 60°, 45°

The opposite figure shows a light ray falls perpendicularly on one of the faces of a triangular prism that is immersed in a liquid of refractive index 1.33. If the critical angle of the prism's material with air is 42°, the incident light ray at point b

• gets totally reflected

• gets refracted away from the normal line

• gets refracted tangent to the face of the prism

• gets refracted toward the normal line

In the figure, the apex angle of the prism ..... 50 °

• is greater than

• is less than

• equals to

• may be greater or less than

The diagram shows the path of a light ray through a triangular prism. The apex angle of the prism θ = 45 ̊. Then the angle Φ equals............. ̊

• 90

• 120

• 135

• 140