A hollow sphere of radius 2 cm is attached to an 18 cm long thread to made a pendulum. Find the time period of oscillation of this pendulum. How does it differ from the time period calculated using the formula for a simple pendulum?

A hollow sphere of radius 2 cm is attached to an 18 cm long thread to

1.	A hollow sphere of radius 2 cm is attached to an 18 cm long thread to made a pendulum. Find the time period of oscillation of this pendulum. How does it differ from the time period calculated using the formula for a simple pendulum?
Answer» SOLUTION :0.89 s , it about 0.3% LARGER than the CALCULATED VALUE