Match List-I with List-II

	List-I		List-II
a	proton and electron	e	gains same velocity in an electric field for same time
b	proton and positron	f	gains same KE in an electric field for same time.
c	Deuteron and $\alpha -$particle	g	experience same force in electric field
d	electron and positron	h	gains same KE when accelerated by same potential difference.

Given data:  proton, electron, positron, deuteron and $\alpha \text{-particle }$

Detailed solution:

Proton: A stable subatomic particle that is present in every atomic nucleus and has a positive electric charge comparable to an electron’s.

Electron: Every atom contains an electron, a stable subatomic particle that is also the primary electrical conductor in solids. It possesses a negative electrical charge.

Positron: a small, positively charged subatomic particle having the same mass as an electron.

Deuteron: one proton and one neutron make up the deuteron, the heavy hydrogen atom’s fundamental unit. 

$\alpha \text{-particle }$: a helium nucleus that some radioactive compounds emit that was first thought to be a ray.

Electron and proton both are observed to gain the same KE when subjected to same potential energy due to their similarity of mass. Proton and positron experience a similar amount of force in electric field due to the similarity in charge. Deuteron and alpha particle gain similar amount of velocity when introduced to electric field for same amount of time, Additionally, electron and positron are known to attain same amount of KE for same time under the influence of an electric field.