For EM radiation, c = λ•f (speed of light = wavelength times frequency)
So f = c/λ = (3x108)/(18.5 x 10-6) = 1.62 x 1013 Hz
Isabel T.
asked • 03/02/21Physics Exam Problem REVIEW _ PLEASE HELP
Electromagnetic radiation having a 18.5 µm wavelength is classified as infrared radiation. What is its frequency (in Hz)?
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