Q. If the $K.\ E.$ of a particle is doubled, then its momentum will
A) Remain unchanged
B) Be doubled
C) Be quadrupled
D) Increase $\sqrt{2}$ times
Explanation
(d) $P = \sqrt{2mE}\therefore\ P \propto \sqrt{E}$
$i.e$., if kinetic energy of a particle is doubled then its momentum will becomes $\sqrt{2}$ times
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.