Physics - SHM Question with Solution | TestHub

Ans. (D) $\mathrm{c}>\mathrm{b}>\mathrm{a}=\mathrm{d}$. Energy conservation $\frac{1}{2}{\mathrm{kA}}^2=\frac{1}{2}\mathrm{m}{\left({\mathrm{v}}_{\max }\right)}^2$ gives ${\mathrm{v}}_{\max }=\sqrt{\mathrm{k}/\mathrm{m}}$ A. k or m has to be increased or decreased by a factor of 4 to have the same effect as increasing or decreasing $A$ by a factor of 2 .