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1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength?



2) A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?

a.0.890hertz

b.100hertz

c.230hertz

d.733

Verified Answer :

meerkat18
  1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
                               λ = s / f = (320 m/s)  / (300 1/s) = 1.07 m
    The wavelength is approximately 1.07 m.

    2. The frequency is the ratio between speed and the wavelength,
                            f = (330 m/s) / 0.45 m = 733.33 hertz

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,

                          λ = s / f = (320 m/s)  / (300 1/s) = 1.07 m

The wavelength is approximately 1.07 m.


2. The frequency is the ratio between speed and the wavelength,

                       f = (330 m/s) / 0.45 m = 733.33 hertz




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