Answer for LASER A laser works when the electrons in atoms in special glasses, c

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Answer for LASER

A laser works when the electrons in atoms in special glasses, crystals, or gases absorb energy from an electrical current and become “excited.” The excited electrons jump from a lower-energy level to a higher-energy level around the atom’s nucleus. When they return to their normal or “ground” state, the electrons emit photons i.e. particles of light.These all photons are of same wavelength and are “coherent". LASER is focused and contains one wavelength only. Because of its focused nature and coherency, it covers long distance without losing its energy.

LASER stands for Light Amplification by Stimulated Emission of Radiation.

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BONUS (Up to 5 points): How does a LASER Work? What does LASER stand for

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