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Debanjana adhikari Asked a Question
May 10, 2020 12:23 pmpts 30 pts
  • CSIR NET
  • Physical Sciences

Q33. the separation between the energy levels of a tw0-level atom is2 ev. suppose that 4x10 atoms are in the ground state and 7x10 atoms are pumped into the exc

Q33. The separation between the energy levels of a tw0-level atom is2 eV. Suppose that 4x10 atoms are in the ground state and 7x10 atoms are pumped into the excited state just before lasing starts. How much energy will be released in a single laser pulse? (a) 24.6 J (b) 22.4J (c)98 J (d) 48J
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  • Dhairya sharma thankyou
    and one more no particle which were more only that come to the ground state but it's two leval system so exactly half will come
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  • Dhairya sharma thankyou
    it's not always that N2 - N1 will come to ground . since saperation energy is given and we know no of particle with respect to energy levals. so the most efficient way to find the ...
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  • Debanjana adhikari
    why (N2- N1)/2 atoms comes to the ground state??
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  • Chandra dhawan
    see attached file
    • cropped1992488220.jpg
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  • Ruby negi
    solution
    • cropped-346273003.jpg
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  • Dhairya sharma
    solution:
    • cropped1783987245.jpg
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