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An electron of a stationary hydrogen ato...

An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom acquired as a result of photon emission will be :

A

`(25hR)/(24m)`

B

`(5m)/(24hR)`

C

`(24m)/(25hR)`

D

`(24hR)(25m)`

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