State the laws of a simple pendulum.

(N/A) The laws of a simple pendulum are as follows:
$1$. Law of Isochronism: For small amplitudes,the period of oscillation $(T)$ of a simple pendulum is independent of its amplitude.
$2$. Law of Length: The period of oscillation $(T)$ is directly proportional to the square root of its effective length $(l)$,i.e.,$T \propto \sqrt{l}$.
$3$. Law of Acceleration due to Gravity: The period of oscillation $(T)$ is inversely proportional to the square root of the acceleration due to gravity $(g)$,i.e.,$T \propto 1/\sqrt{g}$.
$4$. Law of Mass: The period of oscillation $(T)$ is independent of the mass,shape,and material of the bob,provided the length remains constant.