What is the equation to find wavelength of red light with a frequency of 4 x 10^14

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13-05-2015
Physics

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What is the equation to find wavelength of red light with a frequency of 4 x 10^14

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AL2006 AL2006 · Answer 1 · 2015-05-14T11:16:54-04:00

If you know the frequency, then the equation to find the wavelength
of ANY wave is

   Wavelength = (wave speed) / (frequency) .

Since we're talking about light, we'll use 3 x 10^8 m/s for a speed.

   Wavelength = (3 x 10^8 m/s) / (4 x 10^14 /sec) =

   7.5 x 10^-7 meters =

750 nanometers