Correct option is D
The Correct Answer is: (d) Light Amplification by Stimulated Emission of Radiation
Explanation:
LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device that emits a beam of light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device that emits a beam of light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
When they return to a lower energy state, they release photons (light particles).
Information Booster:
Laser light is monochromatic (single wavelength), coherent, and highly directional.
Applications include medical surgeries, barcode scanners, CD/DVD players, optical communication, military targeting, and laser cutting/welding.
First operational laser was built by Theodore Maiman in 1960.
Types of lasers: Gas lasers (He-Ne), Semiconductor lasers, Solid-state lasers (Nd:YAG), Dye lasers, etc.
Laser technology is also used in LIDAR, fiber optics, and holography.
English
100 Questions
100 Marks
90 Mins
