Physicsmedium · Past Paper
A sound wave has a frequency of 100 Hz. How many times does it vibrate in one minute?
A100
B600
C6000
D60
✓ Correct Answer: C — 6000
Frequency is vibrations per second. In 60 seconds (one minute), vibrations = 100 * 60 = 6000.
Share this question
More from Physics
- A machine does 2000 J of work in 20 seconds. Calculate its power.
- What is the displacement of a particle moving in a circle of radius r after it has turned through an angle theta?
- Which of these is used to change the voltage in an AC circuit?
- A force of 10 N acts on a body of mass 2 kg for 3 seconds. The change in momentum is:
- Which of the following wave properties is independent of the others?