Two blocks of masses `m_1` and `m_2` are attached to the lower end of a light vertical spring of force constant k. The upper end of the spring is fixed. When the system is in equilibrium, the lower block `(m_2)` drops off. The other block `(m_1)` will

Options

A. remain undisturbed
B. move up through a distance `m_(2)g//k` and come to rest
C. undergo vertical SHM with a period of `2pisqrt(m_(1)//k)`
D. undergo vertical SHM with time period of
`2pisqrt((m_(1)+m_(2))//k)`

Answer

c