Q. For a body moving with relativistic speed, if the velocity is doubled, then
A) Its linear momentum is doubled
B) Its linear momentum will be less than double
C) Its linear momentum will be more than double
D) Its linear momentum remains unchanged
Explanation
(c) Relativistic momentum $= \frac{m_{0}v}{\sqrt{1 - v^{2}/c^{2}}}$
If velocity is doubled then the relativistic mass also increases. Thus value of linear momentum will be more than double
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.