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An electron of mass m , Charge e falls t...

An electron of mass m , Charge e falls through a distance h meter in a unfirom electric field E. Then time of fall

A

`t=sqrt((2hm)/(eE))`

B

`t=(2hm)/(eE)`

C

`t=sqrt((2eE)/(hm))`

D

`t=(2eE)/(hm)`

Text Solution

Verified by Experts

The correct Answer is:
A
`t=sqrt((2h)/(a))=sqrt((2hm)/(eE))[because a=(eE)/(m)]`
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