A plastic light pipe has an index of refraction of 1.65. For total internal reflection, what is the minimum angle of incidence if the pipe is in the following media? (a) air ° (b) water °
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A plastic light pipe has an index of refraction of 1.65. For total internal reflection, what is the minimum angle of incidence if the pipe is in the following media?
°
(b) water
°
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