There is a simple pendulum hanging from the ceiling of a lift. When the lift is stand still, the time period of the pendulum is T . If the resultant acceleration becomes `g//4` ,then the new time period of the pendulum is

Options

A. 0.8 T
B. 0.25 T
C. 2 T
D. 4 T

Answer

C

Explanation

`Tprop (1)/(sqrtg)`
`implies (T__(1))/(T)=sqrt((g)/(g_(1)))=sqrt((g)/(g//4))`
`implies T_(1)=2T`.