Sound waves whose frequency is 300 Hz have a wavelength relative to sound waves in the same medium whose frequency is 900 Hz that is
A)one-third as great.
B)the same.
C)three times as great.
D)nine times as great.

Question

Quizplus · Accepted Answer

The wavelength of a wave is inversely proportional to its frequency when the speed of sound in the medium is constant. Therefore, if the frequency is reduced to one-third (from 900 Hz to 300 Hz), the wavelength becomes three times greater.

Sound Waves Whose Frequency Is 300 Hz Have a Wavelength