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The wave number of the spectral line in ...

The wave number of the spectral line in emission spectral of hydrogen will be equal to 8/9 timesthe Rydberg's constant if the electron jumps from

A

n=3 to n=1

B

n=10 to n=1

C

n=9 to n=1

D

n=2 to n=1

Text Solution

Verified by Experts

The correct Answer is:
A
`barv=R_(H)[1/(n_(1)^(2))-1/(n_(2)^(2))]=8/9R_(H)`
`:.1/(n_(1)^(2))-1/(n_(2)^(2))=8/9`
`:.n_(1)=1" "n_(2)=3`
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