Question

If the frequency of a sound wave is 250 hertz and its wavelength is 1.36 meters, what is the wave's velocity?

A. 250 meters/second
B. 340 meters/second
C. 200 meters/second
D. 120 meters/second

Answer 1

A wave speed is usually defined as the distance that a wave covers in a given amount of time. It is commonly represented in terms of numbers of meters a wave moves per second.
Given that, Frequency of sound waves, F=250 Hertz
Wavelength=1.36 meters
Mathematically, Wave velocity(speed)=Frequency x Wavelength
V=250 x 1.36
V=340 m/sec

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