Question

Rohit is trying to tune an instrument. He strikes a tuning fork and then plays a note that almost matches it. Rohit hears the volume of the two waves beating, which sounds like "wah-wah-wah-wah."

What is the cause of the beats?


The two waves produced have different speeds.

The two waves produced have different amplitudes.

The two waves produced have different wavelengths.

The two waves produced have different frequencies.

Answer 1

The two waves produced have different frequencies.

Answer 2

The cause of the beats is that the two waves produced have different frequencies. The frequencies will result to the different energy to be emitted causing it to have beats or sound. The higher the frequency, the higher the pitch and vice versa.