Callas588 Callas588

28-06-2015
Physics

Answered

The human ear is most sensitive to sound that has a frequency of about 4000 Hz. Assume that the speed of sound in air is 340 m/s.

What is the wavelength of a sound heard in the air with this frequency?

A0.043 m
B0.085 m
C12 m
D340 m

Verified Answer :

06-07-2015

Wavelength = (speed) / (frequency)

Wavelength = (340 meters per sec) / (4,000 per sec) = 0.085 meters = 8.5 cm

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