Question

What is the wavelength of a sound wave with a frequency of 440 Hz if the speed of sound in air is 340 m/s?

Answer 1

The sound wave has a wavelength of 0.773m.

Explanation:

To solve this problem we have to use the wave equation that is given below:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for `lambda`:

`lambda = v/f`

Let's plug in our given values and see what we get!

`lambda = (340m/cancels)/(440cancels^(-1))`

`lambda = 0.773 m`