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The electric potential at the surface of...

The electric potential at the surface of an atmoic nucleus `(Z = 50)` of radius `9.0 xx 10^(-13) cm` is

A

80 volt

B

`8 xx 6`

C

9 volt

D

10 volt

Text Solution

Verified by Experts

The correct Answer is:
B
`V=(Kq)/r =(K(Ze))/(r) = (9xx10^9 xx50 xx1.6xx10^(-19))/(9xx10^(-13)xx10^(-2))`
`=8xx10^6` volt
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