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A hydrogen atom emits a photon correspon...

A hydrogen atom emits a photon corresponding to an electron transition from n=5 to n=1. The recoil speed of hydrogen atom is almost (mass of proton `=1.6xx10^(-27)` kg).

A

`10^(-4)` m/s

B

`2xx10^(-2)` m/s

C

4 m/s

D

`8xx10^(-2)` m/s

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The correct Answer is:
C
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AAKASH SERIES-ATOMS-EXERCISE - II
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