A beam of light travelling in water is incident on a glass which is immersed in the water. The incid

Question

A beam of light travelling in water is incident on a glass which is immersed in the water. The incident beam makes an angle of 40° with the normal. Calculate the angle of refraction in the glass.

[Refractive index of water = 1.33, Refractive index of glass = 1.5]

[sin 40° = 0.6428, cos 40° = 0.7660, tan 40° = 0.8391]

Answer 1

A beam of light travelling in water is incident on a glass which is immersed in the water. The incident beam makes an angle of 40° with the normal. Calculate the angle of refraction in the glass.

[Refractive index of water = 1.33, Refractive index of glass = 1.5]

[sin 40° = 0.6428, cos 40° = 0.7660, tan 40° = 0.8391]

37.21°
29.36°
34.75° ✓
25.37°

Explanation

This physics concept involves analyzing the given values and applying relevant formulas. Work through the problem step by step using known equations and constants.

Identify what quantity needs to be found and which formula connects the given information to the answer. Substitute the values carefully, paying attention to units.

Check that your calculated answer matches one of the options provided. Understanding the underlying principle helps verify the solution makes physical sense.