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A hydrogen atom is in 5^("th") excited s...

A hydrogen atom is in `5^("th")` excited state. When the electron jumps to ground state the velocity of recoiling hydrogen atom is `"…................"` `m//s` and the energy of the photon is `"…........"` eV.

A

`1.1 ms ^(-1)`

B

`4.2 ms ^(-1)`

C

`8.4 ms ^(-1)`

D

`11.2 ms ^(-1)`

Text Solution

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The correct Answer is:
B
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