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October 20, 2014

Homework Help: 9th grade physics

Posted by Cathy on Saturday, March 3, 2012 at 1:06am.

If a transparent material has a refractive of 2.0;
a) calculate the critical angle
b) if the refractive index were less than 2,0, would the critical angle be greater or less than before?

Im super confused at this :(

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