A simple pendulum of length L and mass (bob) M is oscillating in a plane about a vertical line between angular limit `-phi` and `+phi`. For an angular displacement `theta(|theta|ltphi)`, the tension in the string and the velocity of the bob are T and V respectively. The following relations hold good under the above conditions:

Options

A. T = Mg cos `theta`
B. T cos `theta` = Mg
C. T - Mg cos `theta = Mv^(2)`/L
D. T + Mg cos `theta = Mv^(2)`/L

Answer

C