Experiment

To study simple harmonic under damped oscillations and to calculate

1. Time period T of oscillation 2. Angular frequency w

3. Relaxation time t 

4. The quality factor Q of the oscillations

Two rigid pendulums identical in all respects including the placement of  masses, coupling device ( spring flexible) , stop watch, one triangular shape base with levelling screws, one metal rods 40 cm height  x 12.5 mm thick m.s. chromed, at top of which an   square solid rod   30 cm (aluminium) is fixed. two rods aluminium chromed  9 mm rods are hanged at end of the square solid rod which moves friction less on ball bearings