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in Physics by (71.1k points)

Electrons in hydrogen atom first jump from third excited state to second excited state and then from second excited state to the first excited state. The ratio of λ1 and λ2 emitted in the two cases is

(1) 7/5

(2) 27/20

(3) 27/5

(4) 20/7

1 Answer

+1 vote
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Best answer

Correct option : (4) 20/7

Explanation :

For transition n2 = 3 to n1 =2 we have

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