A ray of light is incident on a diamond-air interface at an angle of 40°. The index of refraction of

JAMB Physics 2023 58 views

A ray of light is incident on a diamond-air interface at an angle of 40°. The index of refraction of diamond is 2.42. What happens to the ray of light?

  1. It is refracted into the air
  2. It is reflected into the air
  3. It is absorbed by the diamond
  4. It is totally internally reflected ✓

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.

pastquestions.ng