Answered

One light beam has wavelength, λ1, and frequency, f1. Another light beam has wavelength, λ2, and
frequency, f2. Write a proportion that shows how the ratio of the wavelengths of these two light beams is
related to the ratio of their frequencies.



Answer :

[tex]\frac{\lambda{1}}{\lambda{2}}=\frac{f2}{f1}[/tex]