A mass $M$ is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes $S.H.M.$ of time period $T$. If the mass is increased by m, the time period becomes $5T/3$. Then the ratio of $m/M$ is
A mass $M$ is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes $S.H.M.$ of time period $T$. If the mass is increased by m, the time period becomes $5T/3$. Then the ratio of $m/M$ is
- [AIEEE 2003]
- [AIIMS 2016]
- A
$\frac{5}{3}$
- B
$\frac{3}{5}$
- C
$\frac{{25}}{9}$
- D
$\frac{{16}}{9}$
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