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An electron of mass 9xx10^(-31) Kg movie...

An electron of mass `9xx10^(-31)` Kg movie with a speed pf `10^(7)m//s` . It acquires a `K.E` of (in eV)

A

`562.50`

B

`1125`

C

`1250`

D

`281.25`

Text Solution

Verified by Experts

The correct Answer is:
D
`K.E.=((1/2mv^(2))/e)` in `ev` where is change of electron
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