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

Question

Quizplus · Accepted Answer

The wavelength is inversely proportional to frequency, so if frequency doubles, wavelength must be halved. This is because the speed of light (c) is constant and the product of frequency and wavelength must equal c. The wavelength of a wave is inversely proportional to its frequency. This means that as the frequency doubles, the wavelength must be halved in order to maintain a constant speed (c is constant).

If a Wave's Frequency Doubles, Its Wavelength