Question

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

• A. zero
• B. unity
• C. ratio of masses of proton and electron
• D. ratio of masses of electron and proton

Answer 1

Answer: (C)

ratio of masses of proton and electron

Answer 2

$\frac{a_{e}}{a_{m}} = \frac{F_{e} /m_{e}}{F_{p} /m_{p}} = \frac{m_{p} \left(eE\right)}{m_{e} \left(eE\right)} = \frac{m_{p}}{m_{e}}$