The time period of a mass suspended from a spring is `T` if the spring is cut in to equal part and the same mass is suspended from one of the pert then the time period will be

Options

A. T
B. `(T)/(2)`
C. `2T`
D. `(T)/(4)`

Answer

B

Explanation

By cutting spring in four equal parts force constant `(K)` of each parts become four times `(:' k prop (1)/(l))` so by using `T = 2 pi sqrt((m)/(K))` time period will be half i.e. `T' = T//2`