Q. The potential energy of a weight less spring compressed by a distance a is proportional to
A) $a$
B) $a^{2}$
C) $a^{- 2}$
D) $a^{0}$
Explanation
(b) Potential energy of spring $= \frac{1}{2}\ Kx^{2}$
$\therefore PE \propto x^{2} \Rightarrow PE \propto a^{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.