1.

An electron and a proton are in a uniform electric field the ratio of their acceleration will be ..........

Answer»

zero
1
`(m_(p))/(m_(E))`
`(m_(e))/m_(p)`

Solution :Force excerts on electron in UNIFORM electric FIELD `=F_(e) =Ee`
`therefore m_(e)a_(e) = Ee`……(1)
and force exerts on proton `F_(p) = E_(e)`
`therefore m_(p)a_(p) = Ee`……(2)
From EQUATION (1) and (2).
`therefore a_(e)/a_(p) = m_(p)/m_(e)`


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