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Solution


Q.

The energy levels of an hydrogen atom are shown below. The transition corresponding to emission of shortest wavelength is          [2023]
1 C  
2 A  
3 D  
4 B  

Ans.

(3)

ΔE=hcλ ⇒ λ∝1ΔE

For shortest wavelength, energy gap should be maximum.  

So, correct choice is transition from n=3 to n=1.