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) Remains the same

(d) First increases and then decreases

I had been asked this question in semester exam.

This is a very interesting question from Harmonic Motion in division Oscillations of Engineering Physics I

Answer 1

The correct option is (c) Remains the same

To explain I would say: Time period, T=2π√(l/g) is independent of the mass of the bob.