A simple pendulum of length I and mass (bob) m is suspended vertically. The string makes an angle `theta` with the vertical. The restoring force acting on the pendulum is

A simple pendulum of length l and mass (bob) m is suspended vertically. The string makes an angle theta with the vertical. The restoring force acting on the pendulum is

A simple pendulum of length L swings in a vertical plane. The tension of the string when it makes an angle theta with the vertical and the bob of mass m moves with a speed v is (g is the gravitational acceleration)

A conical pendulum of length L makes an angle theta with the vertical. The time period will be

A conical pendulum of length L makes an angle theta with the vertical. The time period will be