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Debanjana adhikari Asked a Question
May 10, 2020 11:15 ampts 30 pts
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Q2. a collection of n atoms is exposed to a strong resonant electromagnetic radiation with ng atoms in the ground state and ne atoms in the excited state, such

Q2. A collection of N atoms is exposed to a strong resonant electromagnetic radiation with Ng atoms in the ground state and Ne atoms in the excited state, such that Ng+N=N. This collection of two-level atoms will have the following population distribution: (a) N<< N. (b) Ng>> N. (c) NN, N/2 (d) N-N,* NI2
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  • Ruby negi
    in population inversion case, excited state has more no of electrons then ground state so that when excited electrons come back to ground state gamma Ray is produced i.e called las...
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  • Vaishnavi rajora
    hope it's clear to you
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  • Vaishnavi rajora thankyou
    must see it.
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  • Vaishnavi rajora thankyou
    there must be population inversion. only then laser formation is possible but in two leval system it's not possible
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