A proton and an electron are placed in a uniform electric field.

Let the force on the electron and proton is F_e (F) and F_p (F’) respectively.

Then,

Option (a) is incorrect as the forces are equal only in magnitude but not in direction.

Option(b) is correct as magnitude of the forces are equal.

Option (c) is incorrect as the magnitude of accelerations for both particles is not equal and also the direction is also not the same.

Option (d) is incorrect as the magnitude of acceleration of both will be different as the masses of both are different.