Two springs have spring constants $K_{A}$ and $K_{B}$ and $K_{A} K_{B}.$ The work required to stretch them by same extension will be

Question

Two springs have spring constants $K_{A}$ and $K_{B}$ and $K_{A} > K_{B}.$ The work required to stretch them by same extension will be

Dr. Abubacker · Accepted Answer

(a) Work done in stretching $(W) \propto$ Stiffness of spring ($i.e.\ k$)
$\because k_{A} > k_{B} \Rightarrow W_{A} > W_{B}$ [For same extension]