Two light waves have wavelengths of 200 nm and 400 nm,respectively.How are their frequencies related?
A) The wave with a 200 nm wavelength has one-quarter the frequency of the 400 nm wave.
B) The wave with a 200 nm wavelength has one-half the frequency of the 400 nm wave.
C) The wave with a 200 nm wavelength has the same frequency of the 400 nm wave.
D) The wave with a 200 nm wavelength has twice the frequency of the 400 nm wave.

Question

Quizplus · Accepted Answer

The frequency of a wave is inversely proportional to its wavelength. Therefore, if one wave's wavelength is half that of another, its frequency is twice as high.

Two Light Waves Have Wavelengths of 200 Nm and 400