(a) LASER stands for Light Amplification by Stimulated Emission of Radiation.
(b) A laser is a device that produces an intense, narrow, highly directional beam of light that is monochromatic (single wavelength) and coherent (the waves are in phase), by the process of stimulated emission of radiation.
(a) LASER stands for Light Amplification by Stimulated Emission of Radiation.
(b) A laser is a device that produces an intense, narrow, highly directional beam of light that is monochromatic (single wavelength) and coherent (the waves are in phase), by the process of stimulated emission of radiation.