Question #769ea

1 Answer
Nov 16, 2015

#v = f * lambda#

Explanation:

This is explained by the formula #v = f * lambda#

so, if the frequency is constant and speed is changing, then the wavelength must also change in order to satisfy the given relationship.

Imagine that the frequency is constant and the wavelength is also not changing then, this will unbalance the equation. So, if speed is increasing with frequency being constant, then the wavelength must also increase.