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

Options

A. zero
B. 1
C. `(m_(p))/(m_(e))`
D. `(m_(e))/m_(p)`

Answer

C

Explanation

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)`