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in a couple of lines of math, derive an expression for the critical minimum angle at...

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Physics


in a couple of lines of math, derive an expression for the criticalminimum angle at which total internal reflection that can occurwhen light is incident from higher refraction index to lowerrefraction index material. answer should be in terms of indicies ofrefractions of these materials

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3.7 Ratings (594 Votes)
Consider a surface XY seperating the rarer medium a having lowrefractive index from the denser medium b having high refractiveindex We know when the light travels from the denser to rarermedium it moves away from the normal As the angle of incidence oflight in the denser medium increases the angle of refraction    See Answer
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