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Physics, 20.08.2019 20:00 student0724

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.

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One light beam has wavelength, λ1, and frequency, f1. another light beam has wavelength, λ2, and
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