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The frequency ( f ), wavelength ( ) and speed ( v ) of a sound wave are related as

Options

  1. Af = v
  2. B= vf
  3. Cf = v
  4. Dv = f

Correct answer

D. v = f

Step-by-step solution

The distance travelled by a wave in one time period T is its wavelength . The speed of the wave is given by v = Distance Time = T . Since frequency f = 1 T , substituting this into the equation gives v = f . Answer: v = f

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