Laser and its characteristics for Grade XII:-
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. Laser = Acronym for Light Amplification By Stimulated Emission of Radiation Characteristics of laser 1. It is monochromatic ie. having single color. 2. It is collimated i:e Unidirectional. 3. It is coherent i:e same phase. 4….