NaeNiias9hreen NaeNiias9hreen

07-04-2017
Physics

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What is the critical angle for light traveling inside the rod??

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taskmasters taskmasters

21-04-2017

You need to use snell’s law in this problem. N1sin (theta) = n2sim (theta)

N1 = index of oil

N2 = index of glass

If you already have the numbers, include it in this equation:

N1.sin (90deg) = N2.sin (critical angle) (note sine (90deg) = 1)

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