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In Stimulated emission, the emitted photons are _____________

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in Engineering Physics II by (679k points)
In Stimulated emission, the emitted photons are _____________

(a) Coherent and Monochromatic

(b) Non-coherent and monochromatic

(c) Coherent and Non-Monochromatic

(d) Non-Coherent and Non-monochromatic

I have been asked this question in final exam.

The query is from Interaction of External Energy with the Atomic Energy States in chapter Laser of Engineering Physics II

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The correct option is (a) Coherent and Monochromatic

To explain I would say: Contrary to spontaneous emission, the emitted photon in stimulated emission are coherent and monochromatic. That is why this process is used for the production of LASERS.

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