Refractive index

A ray of light falls on a glass block at an angle 55^o. The refractive index of glass block 1.52. Calculate the angle of refraction.

• 32.6⁰

• 35⁰

• 40⁰

• 30⁰

A light ray with an angle of incidence of 30° passes from water to air. Find the angle of refraction using Snell's Law. Refractive index of water is 1.33.

• 41.7⁰

• 45.7⁰

• 43⁰

• 39.7⁰

The refractive index of honey is 1.47. Calculate the speed of light when it enters honey from air.

• 2.04 x 10⁸ m/s

• 1.04 x 10⁸ m/s

• 2.4 x 10⁸ m/s

• 4.4 x 10⁸ m/s

Refractive index of water is 1.33. calculate the angle of refraction when the incident ray falls on water at an angle 60⁰

• 40.6⁰

• 45.6⁰

• 49.6⁰

• 47.6⁰

The ray of light is travelling from glass to air. The angle of refraction is 60⁰. Calculate the angle of incidence. (refractive index of glass is 1.54)

• 34.2⁰

• 36.2⁰

• 30.2⁰

• 32.2⁰