Question

Total distance traveled by bob of simple pendulum in one vibration is equal to:

• A. amplitude
• B. square of amplitude
• C. two times of amplitude
• D. four times of amplitude

Answer 1

The correct option is D four times of amplitude

Amplitude of the pendulum is defined as the angular displacement of the pendulum bob from its mean position to the extreme position. During one time period, the bob moves from mean position to the extreme position on one side, then move back to the mean position, then move to the extreme position on the other side and finally comes back to the mean position. So, it covers a distance 4 times that of amplitude in one time period.