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Shweta thakur Asked a Question
August 28, 2020 4:04 pmpts 30 pts
  • IIT JAM
  • Chemistry (CY)

Plz check this question and solution also i am getting negative( change in energy) ex the frequency of radiation emitted10-4 js)

Ex The frequency of radiation emitted when the electron falls from n =4 to n 1 in a hydrogen a will be Min (Gven IE= 2.18 x 10-18 J atom- and h = 6.6 x 10-4 Js) Sol. IE= E - E, Ex.
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  • Priyanshu kumar Best Answer
    Yes shweta solution is right...
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    Shweta thakur
    sir but I am getting energy value in negative
  • Ashutosh singh thankyou
    Dear Shweta, instead of E1 - E4, you should have done E4 - E1..let me explain you why! See..the electron in n=1, the energy it has is more negative as compared to when the electron...
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    Ashutosh singh
    When you subtract more negative from less negative, you'll get a positive quantity...and that will be the energy of the radiation emitted.
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