https://doi.org/10.1086/342676 • https://www.jstor.org/stable/10.1086/342676 Copy URL ABSTRACT A new method for computing differential color refraction (DCR) is ...

is. Light of frequency \(4.6\times 10^{14}Hz\) travels at a speed of \(1.24\times 10^{8}ms^{-1}\) in diamond. Calculate the refractive index of diamond for this colour of light.

must always be the angle in a vacuum (or air). Refractive index depends on the frequency or colour of light. Light of higher frequency has a greater refractive index than lower frequency light.