What is the velocity of the electron in ...

What is the velocity of the electron in the first Bohr orbit of hydrogen atom ?

A

`3xx10^(8) m*s^(-1)`

B

`2.19xx10^(6)m*s^(-1)`

C

`3xx10^(7)m*s^(-1)`

D

`2.19xx10^(7)m*s^(-1)`

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The correct Answer is:

B

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