If the frequency of a traveling wave train is increased by a factor of four in a medium where the speed is constant, which of the following is the result?
A) amplitude is one fourth as big
B) amplitude is quadrupled
C) wavelength is quadrupled
D) wavelength is one fourth as big

Question

Quizplus · Accepted Answer

The speed of a wave is the product of its frequency and wavelength. If the frequency is increased by a factor of four and the speed remains constant, the wavelength must decrease by a factor of four to maintain the same wave speed.

If the Frequency of a Traveling Wave Train Is Increased