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Solution


Q.

The number of spectral lines emitted by atomic hydrogen that is in the 4th energy level, is          [2025]
1 6  
2 0  
3 3  
4 1  

Ans.

(1)

Number of spectral line (N) = n(n–1)2. here n = 4

So, N = 6

Total posible transition = 6