What is a periscope in physics

What is a periscope in physics?

Definition: A periscope is an optical

instrument that uses mirrors or prisms

to allow observation of objects that are

not in the direct line of sight.

Explanation: A simple periscope consists

of a tube with plain mirrors or prisms

placed at 45 angles. Light from the

object reflects off the top mirror down

the tube, then off the bottom mirror

into the observer's eyes. This lets a

person see over obstacles or around

corners without being exposed. Imagine,

think of hiding behind a wall but still

being able to see above it using a long

tube with mirrors inside. That's exactly

how a periscope works. In simple terms,

a periscope lets you see around corners

using mirrors. Formula concept law of

reflection. Angle of incidence I equals

angle of reflection are key points. Uses

to plane mirrors or prisms set at 45.

Works on the principle of reflection of

light. Can be simple toy periscopes or

complex submarines. Allows indirect

vision without direct exposure.

Examples. Soldiers using periscopes in

trenches. Submarines observing above

water. Periscopes and armored vehicles.

Applications of relevance. Submarines.

Military trench warfare. Armored

vehicles. Scientific instruments.

Education. Demonstrates reflection of

light. Question. Why are mirrors in a

periscope placed at 45? Answer. Because

at 45, mirrors reflect light at 90,

perfectly directing the image down the

tube to the observer.