Question

. The construction of optical square is based on the
principle of optical
(a) reflection
(b) refraction
(c) double refraction
(d) double reflection.​

Answer 1

Answer:

The construction of optical square is based on the

principle of optical of double reflection.

Optical Square is a very simple geometrical instrument which is used to lay off angles that are multiples of 90° or of 45°.