If `T_(1)` and `T_(2)` are the time-periods of oscillation of a simple pendulum on the surface of earth (of radius R) and at a depth d, the d is equal to

If T_(1),T_(2) and T_(3) are the time periods of a given simple pendulum on the surface of the earth, at a depth 'h' in a mine and at an altitude 'h' above the earth's surface respectively, then

The period of oscillation of a simple pendulum of constant length at surface of the earth is T. Its time period inside mine will be

The time period of a simple pendulum of infinite length is (R=radius of earth).

The time period of a simple pendulum of infinite length is (R=radius of earth).

The period of oscillation of a simple pendulum of constant length at earth surface is T. Its period inside a mine is C

The period of oscillation of a simple pendulum of constant length at earth surface is T. Its period inside a mine is C