You shine a laser pointer at an angle of (30^{circ}) from the nor(mathrm{mal}) onto the surface of
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You shine a laser pointer at an angle of \(30^{\circ}\) from the nor\(\mathrm{mal}\) onto the surface of a thick block of glass for which the index of refraction is \(n=1.5\).
(a) What is the angle of refraction of the laser beam?
(b) Draw a diagram showing the normal, the surface of the block, and the incident and refracted wavefronts and rays.
(c) How would the angles in parts \(a\) and \(b\) change if the incident angle were \(45^{\circ}\) ?
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