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A stationary hydrogen atom emits photon ...

A stationary hydrogen atom emits photon corresponding to the first line of Lyman series. If R is the Rydberg constant and M is the mass of the atom, then the velocity acquired by the atom is

A

`(3 Rh)/(4M)`

B

`(4M)/(3Rh)`

C

`(Rh)/(4M)`

D

`(4M)/(Rh)`.

Text Solution

Verified by Experts

The correct Answer is:
A
`p= mv, (h)/(lambda) = mv rArr v =(h)/(m) ((1)/(lambda)) & (1)/(lambda) =(3R)/(4)`.
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