## Instructions

- Connect the LED and photo-transistor of the Light Barrier
- Connect the DC motor to which the pendulum is connected, to WG, or SQ1.
- Adjust frequency of WG, or SQ1 using the slider, and locate the resonant frequency
- Start the desired number of measurements

## An Alternate approach

Disconnect the DC Motor from WG/SQ1 such that it can freely rotate. Then calculate the time period using the light barrier.
The frequency you have obtained is the natural frequency of the pendulum.
Now connect the Motor to WG, and set WG to this frequency.
This driven pendulum must show maximum oscillation amplitude at this frequency!