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How to evaluate the wavelength of light

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How to evaluate the wavelength of light

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  1. Do you mean how to measure it?  Lots of ways.  Spectroscopy with comparison to a known accurate reference.  Frequency counter.


  2. The wavelength of light is related to the Energy by:

    Energy = h*c/ wavelength

    h=planck's constant

    c=speed of light

    So to solve for wavelength

    Wavelength = (h*c) / Energy

    Frequency = c / wavelength
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