Question

write the principal of working periscope?​

Answer 1

Answer:

Working Principle

A periscope works on the Laws of Reflection which states that the light from the object falls on one mirror at a 45o 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.

Explanation:

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Answer 2

$\bold\red{Answer }$

periscope works on the basis of laws of reflection of light. Any object in the line of sight reflects the light making it visible in the periscope.