If the time period of a pendulum is `1sec`, then what is the length of the pendulum at point of intersection of `l-T` and `l-T^(2)` graph.

How does time period (T) of a seconds pendulum vary with length(l)?

If the time period of a simple pendulum of effective length L is T, then the effective length of a simple pendulum having time period 2T will be

In a simple pendulum the period of oscillation (T) is related to the length of the pendulum (L) as

In a simple pendulum the period of oscillation (T) is related to the length of the pendulum (L) as