question_answer

For a given incident ray, the plane of the mirror makes an angle\[\theta \]with the incident ray, then the reflected ray is turned through\[2\theta .\]Which of the following is based on the above principle?

A)  Periscope

B)                         Kaleidoscope

C)                         Shaving mirrors

D)                         Automobile head lights

Correct Answer: A

Solution :

In the case of a periscope, the given fact is used and is illustrated below.