Viva questions for torsional pendulum expirement??

Aim:

To determine the rigidity modulus of the suspension wire using torsion pendulum.

Apparatus:

The given torsion pendulum, two identical cyllindrical masses, stop watch, metre scale, etc.

Theory:

What is Torsional Oscillation?

A body suspended by a thread or wire which twists first in one direction and then in the reverse direction, in the horizontal plane is called a torsional pendulum.The first torsion pendulum was developed by Robert Leslie in 1793.


http://vlab.amrita.edu/?sub=1&brch=280&sim=1518&cnt=1