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A sound wave in the air has a frequency of 256 hertz and is traveling at a speed of 331 meters/second. What is its wavelength?


1.52 meters


1.29 meters


2.39 meters


0.500 meters


10.0 meters

Verified Answer :

Answer: The correct answer is 1.29 m/s.

Explanation:

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

\(v=f\lambda\)

Here, f is the frequency of the wave, v is the velocity of the wave and \(\lambda\) is the wavelength of the wave.

It is given in the problem that a sound wave in the air has a frequency of 256 hertz and is traveling at a speed of 331 meters/second.

Calculate the wavelength of the wave by rearranging the above expression.

Put v= 331 m/s and f= 256 Hz by rearranging the above expression.

\(\lambda =\frac{331}{256}\)

\(\lambda =1.29 m\)

Therefore, the wavelength of the wave is 1.29.

Answer:

B. 1.29 meters

Explanation:(Plato)