Question

Define frequency of a sound wave state its si unit

Answer 1

.frequency. The number of cycles per second (Hertz) (abbreviated as, hz) of anything that oscillates is called the "frequency". ... A person with normal hearing can hear all the way up to about 20,000 hz. Sound is actually more like "compression" waves, rather than waves on the ocean.

Answer 2

Frequency in a sound wave refers to the rate of the vibration of the sound travelling through the air.

The SI unit of frequency is the hertz (Hz)