Physicsmedium · Past Paper
What is the wavelength of a sound wave with a frequency of 20 Hz in air where the speed of sound is 340 m/s?
A17 m
B6.8 m
C0.058 m
D6800 m
✓ Correct Answer: A — 17 m
lambda = v / f = 340 / 20 = 17 meters.
Share this question
More from Physics
- An object floats when its weight is:
- Dimensions of work are:
- An object travels 10m North and then 10m East. What is the magnitude of its displacement?
- The center of the reflecting surface of a spherical mirror is called:
- A body starts from rest and moves with constant acceleration. The ratio of distance covered in the first second to the second second is: