Question

Assertion (A): When light passes through a triangular prism, it is observed that for two angles of incidence, the angle of deviation is the same.

Reason (R): According to the principle of reversibility, the light retraces the path in reversing the direction.

Options

• A and R are true, and R is the reason for A.

• A and R are true, and R is not the reason for A.

• A is true, but R is false.

• A is false, but R is true.

Answer 1

A and R are true, and R is the reason for A.

Explanation:

Both statements are true. By reversibility, a ray passing through the prism along a path can retrace the same path in the opposite direction. This allows two different angles of incidence to produce the same angle of deviation.