JEE Main Physics question

Physics Work, Energy and Power JEE Main

Four particles given have the same momentum. Which has maximum kinetic energy [Orissa PMT 2004]

(A)Proton
(B)ElectronCorrect
(C)Deutron
(D)α-particle

Answer: (B)

Solution

E = p²/2m, so for the same momentum, E ∝ 1/m — the lightest particle (electron) has the maximum kinetic energy.

Question ID VK-153918