question_answer

A body of mass 4.9 kg hangs from a spring and oscillates with a period 0.5 s. On the removal of the body, the spring is shortened by (Take \[g=10\text{ m}{{s}^{-2}},{{n}^{2}}=10\])

A)  6.3 m                   

B)         0.63 m 

C)  6.25 cm               

D)         63 cm

E)  0.625 cm