Periscope and its application
Answers
A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight. It consists of an outer case with mirrors at each end at 45° angle.
Principle:-A periscope works on the basis of laws of reflection of light.
Application:- Periscopes are found in a variety of applications; however, they are almost synonymous with their use in submarines for general navigation and detection, as well as radar and their ability to determine potential nearby threats. In a similar 'threat detection' application, periscopes are often used on battlefields to look out of trenches safely without exposing the observer's body. One of the most widely used applications for periscopes is in medicine, as a result of their ability to be less obtrusive method diagnostic techniques as compared to surgical procedures.