MCQ
A mass $M$ is suspended from a light spring. An additional mass $m$ added displaces the spring further by a distance $x$. Now the combined mass will oscillate on the spring with period
- A$T=2 \pi \sqrt{(m g / x(M+m))}$
- ✓$T=2 \pi \sqrt{((M+m) x / m g)}$
- C$T=(\pi / 2) \sqrt{(m g / x(M+m))}$
- D$T=2 \pi \sqrt{((M+m) / m g x)}$
