Q:

A pendulum oscillates 30 times in 3 seconds. Choose the correct statement from among the following:

• 1
  It's time period is 10 s and frequency 3 Hz.
• 2
  It's time period is 0.1 s and frequency is 10 Hz.
• 3
  It's time period is 10 s and frequency is 03 Hz.
• 4
  It's time period is 0.3 s and frequency is 0.3 Hz