Multiple choice general knowledge

What is the time period of simple pendulum at the centre of the earth?

  1. 24 Hours

  2. 9.8 Secs

  3. Infinite

  4. 1 Year
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At the center of the Earth, the effective gravitational acceleration (g) becomes zero because the mass of the Earth is symmetrically distributed around that point, canceling out all gravitational forces. Since the time period formula T = 2π√(L/g) would result in division by zero, the time period becomes theoretically infinite.

Keep practicing — related questions