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December 7, 2016

Homework Help: Physics

Posted by Samantha on Sunday, March 21, 2010 at 3:05pm.

Light travels in a line of optical fiber by total internal reflection between a core of refractive index 1.48 and a cladding 1.46 refractive index.

The critical angle for total internal reflection to occur inside the core of the fiber is ...

80.6º
48.8º
43.2º
42.5º
24.4º

I keep getting this one wrong too. Please help

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