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Question

How many spectral lines are seen for hydrogen atom when electron jump from n2=5 to n1=1 in visible region?

A
10
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B
3
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C
4
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D
5
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Solution

The correct option is A 10
No. of spectral lines in hydrogen atom from n2n1 is (n2n1)(n2n1+1)2
As, n2=5
n1=1
10=(51)(51+1)2
The no. of spectral lines =10

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