Periscope allows the submarine to search visually any nearby targets and the threats on the surface of the water. It is also in use in the submarines to see the events which are happening behind a wall or a barrier. Some complex periscopes operate on submarines and in different fields of science.

What is a periscope used for?

Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.

Where periscope is used and why?

Uses Of Periscope

It is used in submarines to determine the distance of a torpedo and helps in deciding the right time for the attack. It is used in a nuclear reactor to observe the chemical reactions that are taking place. In military periscopes are used to observe from their hiding position.