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If the kinetic energy of an electron in ...

If the kinetic energy of an electron in a hydrogen is `(e^(2))/(8 pi epsi_(0)r)` then its potential energy is.....

A

`(e^2)/(4pi epsi_0 r)`

B

`-(e^2)/(4pi epsi_0 r)`

C

`(e^2)/(8 pi epsi_0 r)`

D

`-(e^2)/(8 pi epsi_0 r)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(|PE|)/(2) = K.E.`
`P.E. = -2 K.E.`
`= 2 xx (e^2)/(8 pi epsi_0 r) = (-e^2) /(4pi epsi_0 r)`
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