If the frequency of a sound wave is 250 hertz and it's wavelength is 1.36 m, what is the waves velocity? a) 250 m/s b) 340 m/s c) 200 m/s d) 120 m/s

The correct answer is 340 m/s.

Explanation:

The expression for the velocity of the wave is as follows;

Here, f is the frequency of the wave, v is the velocity of the wave and is the wavelength of the wave.

It is given in the problem that the frequency of a sound wave is 250 hertz and it's wavelength is 1.36 m.

Calculate the velocity of the wave.

Put and f= 250 Hz in the above expression.

Therefore, the velocity of the wave is 340 m/s. The correct option is (B).

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your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.