What is the main requirement to attain population inversion in a laser?

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Physics · Optics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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To excite a majority of the atoms into a higher energy state

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Answer 1

To reduce the time of production of laser

Answer 2

To bring most of the atoms to the ground state

Answer 3

To excite a majority of the atoms into a higher energy state

Answer 4

To achieve a stable condition

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