Chapter 13, Problem 7RAT

To determine

The correct option for the statement, “When a light ray passes at an angle from air to water, the ray inside the water bends.”

Answer to Problem 7RAT

The correct option for the statement, “When a light ray passes at an angle from air to water, the ray inside the water bends” is option (a).

Explanation of Solution

The bending of light rays from the original path occurs when it moves from one to another medium. This phenomenon is known as the refraction of the light. The angle of incidence is the angle that an incident ray makes with the normal, whereas the angle of refraction is the angle that a refracted ray makes from normal.

The variation in the angle of refraction takes place due to the medium, as it can be rare or denser. Air is a rarer medium, whereas water is denser as compared to air. When a light ray moves from air to water, then the light ray bends towards the normal.

Conclusion:

The correct option for the statement, “When a light ray passes at an angle from air to water, the ray inside the water bends” is option (a).