Q111 / 150 · MHT CET 2011 · Physics
Two springs have spring constant $k_{A}$ and $k_{B}$ and $k_{A}>k_{B}$. The work required to stretch them by same extension will be
- Correct answerAmore in spring $A$
- Bmore in spring $B$
- Cequal in both
- Dnothing can be said
Solution
Work done in stretching $(\mathrm{W})=$ stiffness of spring
$\because$
$$
k_{A}>k_{B}, W_{A}>W_{B}
$$
Hence, the correct answer is option: 'A'.