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In hydrogen atom, the electron is moving...

In hydrogen atom, the electron is moving round the nucleus with velocity `2.18xx10^(6)ms^(-1)`in an orbit of radius 0.528 A. The acceleration of the electron is .

A

`9xx10^-22 m/s^2`

B

`9xx10^22 m/s^2`

C

`9xx10^-22 m/s^2`

D

`9xx10^12 m/s^2`

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