Write the name of any one device for obtaining coherent Sources.
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1
Answer:
Laser
Explanation:
The atoms in the laser medium are pumped up energetically by an external power source, producing a population inversion of atomic energies. the pumped-up atoms can return to lower energy levels by emitting light at only certain frequencies , depending on a particular medium which can be a solid, liquid or a gas.
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0
Answer:
Lasers are commonly used as coherent sources and use a phenomenon called Simulated Emission to generate highly coherent light. Small sources of light are at least partially coherent.
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