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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