Q. Given that $r = m^{2}$ sin $pt,$ where $t$ represents time. If the unit of $m$ is N, then the unit of $r$ is
A) N
B) $N^{2}$
C) N s
D) $N^{2}s$
Explanation
$T$-ratios are dimensionless. So the unit of $r$ is $N^{2}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.