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It is found experimentally that 13.6 eV ...

It is found experimentally that `13.6 eV` energy is required to separated a hydrogen atom into a proton and an electron. Compute the orbital radius and velocity of electron in a hydrogen atom.

A

`r=2.5xx10^6m ,v=12xx10^4m/s`

B

`r=3.1xx10^8m ,v=3.1xx10^6m/s`

C

`r=5.3xx10^(-11)m ,v=2.2xx10^6m/s`

D

`r=4.2xx10^7m ,v=5.4xx10^8m/s`

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The correct Answer is:
A
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