Q 11-13-015NEETJEE MainMedium
A particle in SHM is at a displacement of half its amplitude. The fraction of its total energy that is kinetic is
Answer: (A) $\dfrac{3}{4}$
$\dfrac{U}{E} = \dfrac{x^2}{A^2} = \dfrac{1}{4}$, so $\dfrac{K}{E} = 1 - \dfrac{1}{4} = \dfrac{3}{4}$.
Solution by Sreeraj P, M.Sc Physics