This Compound Pendulum (Steel) is a precision-engineered physics laboratory apparatus designed to demonstrate the principles of simple harmonic motion, centre of gravity, and moment of inertia. The apparatus consists of a uniform steel rod of approximately 1 cm diameter, marked at equal intervals of 5 cm along its length. Two circular ring-type removable knife edges are provided, allowing the pendulum to be suspended from different positions.

The pendulum is suspended vertically using a horizontal knife edge, which rests securely on a sturdy wall-mounted bracket. The apparatus is supplied complete with a wall bracket for convenient installation and stable operation during experiments.

Experimental Objectives
To determine the acceleration due to gravity (g) using a compound pendulum.
To determine the radius of gyration of a compound pendulum about an axis passing through its centre of gravity and perpendicular to its length.