GP Sound Waves

An object is vibrating at 50 hertz. What is its time period?

  1. 0.02 s
  2. 2 s
  3. 0.2 s
  4. 20.0 s

Answer

Frequency = 1 / Time Period

Time Period = 1 / Frequency

Time Period = 1/50

= 0.02 s

The correct option is A.