| Sl. No. | Required Item | Utility |
|---|---|---|
| 1 | Stand | Holding the entire system |
| 2 | Wire | Rigidity modulus of this is measured |
| 3 | Circular Weight | Load Mass |
| 4 | Chuck | Holds the wire at the top |
| 5 | Digital Balance | Weighing the different weights and the hanger |
| 6 | Stopwatch | Measuring time period |
| 7 | Meter Scale | Measure the extension |
| 8 | Screw guage | Measure the thickness of the wire |
| 9 | Pliers | Removing the bends in the wire |
| 10 | Vernier callipers | Measure radius of the disc |
A torsional pendulum is an oscillator for which the restoring force is torsion.
Figure 1: (a) Experimental Set-up (b) Free body diagram