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Ray Kay
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Every site and video I have been on doesn't address it directly.specifically I want to know what is are the evidence thatexperiments we derive thethese wavelengths from and how do we calculate the wavelengths inspite of this evidence?

Every site and video I have been on doesn't address it directly.specifically I want to know what is the evidence that we derive the wavelengths from and how do we calculate the wavelengths inspite of this evidence?

Every site and video I have been on doesn't address it directly.specifically I want to know what is are the experiments we derive these wavelengths from and how do we calculate the wavelengths inspite of this evidence?

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Ray Kay
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How do we know the wavelength of colours?

Every site and video I have been on doesn't address it directly.specifically I want to know what is the evidence that we derive the wavelengths from and how do we calculate the wavelengths inspite of this evidence?