HC Verma - Concepts of Physics Part 1

Book: HC Verma - Concepts of Physics Part 1

Chapter: 12. Simple Harmonic Motion

Subject: Physics - Class 11th

Q. No. 51 of Exercises

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

0.89 s, it is about 0.3% larger than the calculated value

length of the pendulum

This is a physical pendulum,

Where is the distance between center of mass and point of suspension.

If we consider this as a simple pendulum, then

Time period =

Difference in time period

% of

more than simple pendulum.

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