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A hydrogen atom ia in excited state of ...

A hydrogen atom ia in excited state of principal quantum number `n` . It emits a photon of wavelength `lambda` when it returnesto the ground state. The value of `n` is

A

`sqrt(lambda R ( lambdaR - 1))`

B

`sqrt(((lambdaR -1))/(lambda R))`

C

`sqrt((lambdaR)/(lambda R -1))`

D

`sqrt(lambda(R-1))`

Text Solution

Verified by Experts

The correct Answer is:
C
`(hc)/(lambda) = Rhc(1-(1)/(n^2))`
`n = sqrt((lambdaR)/(lambdaR-1))`
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