Answer: The correct answer is 340 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 the frequency of a sound wave is 250 hertz and it's wavelength is 1.36 m.
Calculate the velocity of the wave.
Put \(\lambda= 1.36 m\) and f= 250 Hz in the above expression.
\(v=(250)(1.36)\)
\(v=340 m/s\)
Therefore, the velocity of the wave is 340 m/s. The correct option is (B).
