Question 322: Oscillations

Question

A rubber ball filled with water, having a small hole is used as the bob of a simple pendulum. The time period of such a pendulum

Accepted Answer

From $$T=2 \pi \sqrt{\frac{L}{g}}$$
The effective length increases due to this flow of water. Therefore, $$\mathrm{T}$$ increases. As the water flows out, the length decreases and becomes equal to the original length. Hence, the time period becomes equal to the value at the beginning.

Answer

is a constant.

Answer

decreases with time.

Answer

increases with time.

Answer

first increases and then decreases, finally having same value as at the beginning.

Oscillations

A rubber ball filled with water, having a small hole is used as the bob of a simple pendulum. The time period of such a pendulum

Choose the correct answer: