The phenomenon of deviation of light rays from their original path, when they pass from one
medium to another, is called ______.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. refraction
- Refraction is a phenomenon in which when a ray passes from one medium to another it bends away from its straight-line path due to the difference in optical densities or refractive indices of the two mediums. This bending is known as deviation.
- The phenomenon basically occurs because of the difference in the refractive index of the media since the speed changes.
- This change in speed leads to a change in direction.