Question

what happens when a parallel beam of light falls on a plane mirror?​

Answer 1

Answer:

Regular reflection occurs when a beam of light falls on a smooth and polished surface, such as a plane mirror. When a parallel beam of light is incident on a plane mirror, the reflected beam is also parallel and it is in a fixed direction. ... Thus the reflected light can be seen from anywhere.

Answer 2

Answer:

Thus, a plane mirror produces regular reflection of light. Since the angle of incidence and the angle of reflection are the same or equal, a beam of parallel rays falling on a smooth surface is reflected as a beam of parallel light rays in one direction only.