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October 22, 2014

Homework Help: Physics

Posted by Jon on Tuesday, April 8, 2008 at 3:52am.

1)A beam of light passes from air to ethanol, with index of refracton of 1.36. If the angle of incidence ( 1)is 30.0 d/C, then calculate the angle of refraction, after light passes through ethanol and enters into air.

sin-1((1.0003/1.36)sin30.0
21.6 d/C

2)An ____ lens is used to produce a real image.

convex

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