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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
2 Nov 2021

Given information

given energy levels,

 

Step-by-step explanation

Step 1.

firstly, one has to calculate the energy of electron in given energy levels, i.e.,    and .

and then calculate the energy difference, 

 

and, For hydrogen atom, the energy of an electron in an orbital with quantum number   is;

 

 

 

Further substituting the  values one get, 

 

but energy of photon must always be positive. So, .

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