Question

Explain about periscope and how it uses the principle of reflection to view object.

Answer 1

Explanation:

A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle.

A periscope works on the Laws of Reflection which states that the light from the object falls on one mirror at a 45° angle from the object and is reflected. This reflected light then falls on another mirror and is again reflected until it reaches the human eye.