If a wave's frequency doubles and its speed stays constant, its wavelength
A) is now 4× longer.
B) is halved.
C) is also doubled.
D) becomes 16× longer.
E) is unchanged, as c is constant.

Question

Quizplus · Accepted Answer

The wavelength is inversely proportional to the frequency when the wave speed is constant. Therefore, if the frequency doubles, the wavelength is halved.

If a Wave's Frequency Doubles and Its Speed Stays Constant