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Vikash Raj Shrivastava posted an Question
May 29, 2021 • 16:08 pm 30 points
  • CSIR NET
  • Physical Sciences

Onsider a hydrogen atom undergoing a 2p-1s eansition. the lifetimne tsn of the 2p state for transition. enontaneous emission is 1.6 ns and the energy 2p state f

onsider a hydrogen atom undergoing a 2P-1s eansition. The lifetimne tsn of the 2P state for transition. enontaneous emission is 1.6 ns and the energy 2P state for difference between the level is 10.2 eV. Assuming that he refractive index of the medium n=1, the ratio of Finstein coefficiernts for stimulated and spontaneous emission B21 (0)/ Az1 (0) is given by (a) 0.683x 1012 mJ's-1 (c) 6.83 x 1012 mJ's-1 (b) 0.146x 10 Jsm (d) 1.463x 10 Jsm

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