Question

If the metal bob of a simple pendulum is replaced by a wooden bob, then its time period will :

• A. increase
• B. decrease
• C. remain the same
• D. first increase then decrease

Answer 1

Answer: (C)

remain the same

Time period of a simple pendulum is

$T=2\pi \sqrt{\frac{L}{g}}$

We can clearly see that Time Period is independent of mass of bob.

So if the metal bob is replaced by a wooden bob,the Time period will remain same