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Refracted angle of the light exiting a prism

An equilateral prism made of glass, n = 1.67 @ 450nm, is given. If white light enters one face of the prism at 55 degrees incident angle, what would be the refracted angle of the light exiting the prism for 450nm?

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I have shown how to find the refracted angle of the beam exiting the prism when the incident angle is given. I have used the geometry and Snell's law to solve this problem. This technique could be used to solve similar problems which requires you to find various other angles of the prism.