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If the electron in a hydrogen atom jumps...

If the electron in a hydrogen atom jumps from an orbit with level `n_(1)=2` an orbit with level `n_(2)=1`. The emitted radiation has a wavelength given by

A

`lambda=5/(3R)`

B

`lambda =4/(3R)`

C

`lambda=R/4`

D

`lambda=(3R)/4`

Text Solution

Verified by Experts

The correct Answer is:
B
`1/lambda=R[1/p^(2)-1/n^(2)]`
`=R[1/1-1/4]=(3R)/4`
`:. lambda =4/(3R)`
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