5. 45. Figure P34.45 shows the path of a light beam through sev- eral slabs with different indices of refraction. (a) If 0, 30.0°, what is the angle 6, of the emerging beam? (b) what must the incident angle 6, be to have total internal reflec- tion at the surface between the medium with n = 1.20 and %3D the medium withn= 1.00? n=1.60 N- 1.40 n-1.20 n-1.00 Figure P34.45
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