$A$ simple pendulum is vibrating in an evacuated chamber. It will oscillate with:

The ratio of frequencies of two oscillating pendulums are $3: 2$. Their lengths are in the ratio:

$A$ simple pendulum with length $100\,cm$ and bob of mass $250\,g$ is executing $S$.$H$.$M$. of amplitude $10\,cm$. The maximum tension in the string is found to be $\frac{x}{40}\,N$. The value of $x$ is $..........$.

What is a simple pendulum? Deduce an expression for the time period of a simple pendulum.

$A$ lift is descending with an acceleration of $g/3$. What will be the time period of a simple pendulum suspended from its ceiling if its time period in a stationary lift is $T$?

$A$ hollow sphere is filled with water through a small hole in it. It is then hung by a long thread and made to oscillate. As the water slowly flows out of the hole at the bottom, the period of oscillation will