Column-I		Column-II
a)	Velocity is maximum	e)	At half of the amplitude
b)	K.E. is 3/4th of total energy	f)	At the mean position
c)	P.E. is 3/4th of total energy	g)	At extreme position
d)	Acceleration is maximum	h)	At $\frac{\sqrt{3}}{2}$ times amplitude

(A) At mean position, velocity is max=Aω

(B) In SHM, total Energy = $\frac{1}{2}{\mathrm{kA}}^2$

$\text{ and }\mathrm{KE}=\frac{1}{2}\mathrm{K}\left({\mathrm{A}}^2-{\mathrm{x}}^2\right)$

$\because \mathrm{KE}=\frac{3}{4}\mathrm{TE}$

$\frac{1}{2}k{A}^2-\frac{1}{2}k{x}^2=\frac{3}{4}TE=\frac{3}{4}\left(\frac{1}{2}k{A}^2\right)$

$\Rightarrow A^2=4x^2\Rightarrow x=\pm \frac{A}{2}$

(C) $\mathrm{PE}=\frac{1}{2}{\mathrm{kx}}^2\text{ and }\mathrm{TE}=\frac{1}{2}{\mathrm{kA}}^2$

$\Rightarrow {\mathrm{x}}^2=\frac{3}{4}{\mathrm{A}}^2\Rightarrow \mathrm{x}=\pm \frac{\sqrt{3}}{2}\mathrm{A}$

(D) At extreme position, acceleration is maximum.