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(1) Assume that light is traveling from one layer of silica whose refractive index is 1.471 (Core) to another layer of silica whose refractive index is 1.445(Cladding). (a) Find the critical propagation angles (b) Find the acceptance angle (c) The refraction take place from the normal or to the normal? (2) If a light beam is oscillating at 0.213 Ghz (a) What is the index of refraction of the optical medium where the light bean is traveling.
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