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

A simple pendulum of length $L$ is constructed from a point object of mass $m$ suspended by a massless string attached to a fixed pivot point. $A$ small peg is placed a distance $2L/3$ directly below the fixed pivot point so that the pendulum would swing as shown in the figure below. The mass is displaced $5$ degrees from the vertical and released. How long does it take to return to its starting position?

A girl is swinging a swing in the sitting position. What will be the effect on the time period of the swing if she stand up ?

If the metal bob of a simple pendulum is replaced by a wooden bob, then its time period will

A pendulum is swinging in an elevator. Its period will be greatest when the elevator is

The length of simple pendulum is increased by $44\%$. The percentage increase in its time period will be ..... $\%$