Question

Three masses of 500 g, 300 g and 100 g are suspended at the end of a spring as shown, and are in equilibrium. When the 500 g mass is removed, the system oscillates with a period of 2 second. When the 300 g mass is also removed, it will oscillate with a period of
(a) 2 s
(b) 4 s
(c) 8 s
(d) 1 s

Answer 1

If all the masses are attached at same end then time period is independent of mass. T= 2π√(l/g)

So and is a