Question

A heavy brass-sphere is hung from a sprial spring and it exectues vertical vibrations vibrations with period `T`. The ball is now immersed in nonvicous liquid with a density one-tenth that of brass. When set into verical vibrations with the sphere remaining inside liquid all the time, the period will be:-
A. `[9/10]T`
B. `Tsqrt(((10)/(9)))`
C. Uncharged
D. `Tsqrt(((9)/(10)))`

Answer 1

Correct Answer - B
Time period for spring block system is
`T = 2pisqrt((m)/(k))` does not effected.