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MCAT Question A Day - 9/16/13 - Answer!

If the speed of a transverse wave of a violin string is 12 meters per second and the frequency played is 4.0 Hz, what is the wavelength of the sound?

A.  48 m
B.  12 m
C.  3.0 m
D.  0.33 m

The correct answer is (C). The speed is equal to the product of the velocity and wavelength; therefore:

wavelength = (velocity)/(frequency) = (12 m/s) / 4s-1 = 3 meters

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