1.

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

Answer»

`t=SQRT((2hm)/(EE))`
`t=(2hm)/(eE)`
`t=sqrt((2eE)/(HM))`
`t=(2eE)/(hm)`

SOLUTION :`t=sqrt((2H)/(a))=sqrt((2hm)/(eE))[because a=(eE)/(m)]`


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