A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.

A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation?

An object oscillates 50 times in one second. What should be its frequency ?

If a simple pendulum oscillates in water instead of air then the time period will -

If the time taken by a simple pendulum to com-plete 16 oscillations is 4 seconds, what is the time period of the simple pendulum ?

The time taken by a pendulum to complete 25 vibrations is 88.0 s. Find the time period of the pendulum in second upto appropriate significant figures.