Question

four particles have same Momentum which has maximum kinetic energy

Answer 1

The answer is
Proton
It is correct

Answer 2

The mathematical relationship between the momentum and kinetic energy is .

K=P²/2m

[here ,K= kinetic energy

P= momentum and m= mass]

Now according to the conditions mentioned in the question the momentum is constant.

So the P² is also constant here.

Now the least value of "m" will generate the highest value of the kinetic energy.

And among those four particles,the electron's mass is the least.

That's why the correct answer of this question is option b,electron.