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An electron makes a transition from orbi...

An electron makes a transition from orbit n=4 to the orbit n=2 of a hydrogen atom. The wave number of the emitted radiation (R=Rydberg's cosntant) will be

A

`16/(3R)`

B

`(2R)/16`

C

`(3R)/16`

D

`(4R)/16`

Text Solution

Verified by Experts

Wave number `=-R[1/(n_(2)^(2))-1/(n_(1)^(2))]`
`=-R[1/(4^(2))-1/(2^(2))]`
`=(3R)/16`
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