A spring - block system undergoes vertical oscillation above a large horizontal metal sheet with uniform positive charge. The time period of the oscillation will be is given a charge `Q` , its time period of oscillation will be

Options

A. `T`
B. `gt T`
C. `ltT`
D. `gtT` if `Q` is `+ve ` and `lt T` if `Q` is `-ve`

Answer

1

Explanation

The time - period `T = 2pi sqrt((m)/(k))` of spring pendulum remins same.