Physics - NLM Question with Solution | TestHub

A light spring is suspended with mass $m_1$ at its lower end and its upper end fixed to a rigid support. The mass is pulled down a short distance and then released. The period of oscillation is $\mathrm{T}$ second. When a mass ${\mathrm{m}}_2$ is added to $m_1$ and the system is made to oscillate, the period is found to be $\frac{3}{2}\mathrm{T}$. The ratio ${\mathrm{m}}_1:{\mathrm{m}}_2$ is