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Solution


Q.

A hydrogen atom in ground state is given an energy of 10.2 eV. How many spectral lines will be emitted due to transition of electrons               [2024]
1 6  
2 3  
3 10  
4 1  

Ans.

(4)        

            As, En∝Z2n2

             Energy of the 2nd orbit E2=-13.64=-3.4 eV

              ΔE2→1=10.2 eV

              So, only possible transition is from n=2 to n=1