Question

What is the frequency of a ship's whistle if the velocity of sound is 340 meters/second and the wavelength is 1.70 meters?
A. 200 hertz
B. 253 hertz
C. 340 hertz
D. 532 hertz

Answer 1

we have this subsequent formula:
\[\Large \lambda f = v\]
where \lambda is the wave length, v is the speed, and f is the frequency. So we can write:
\[\Large f = \frac{v}{\lambda } = \frac{{340}}{{1.70}} = ...hertz\]