A light beam containing red and Viólét wavelengths iš inčiđent on å šlab óf quartz at an anglè of incidence of 61.6°. Thẻ index of refraction of quartz is 1.455 at 600 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Find the dispersion of the slab, which is defined as the difference in the angles of refraction for the two wavelengths. Need Help? Read It
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