A laser beam enters a 19.5 cm thick glass window at an angle of 49.0 degrees (from the normal). The index of refraction of the glass is 1.42. At what angle from the normal does the beam travel through the glass (in degrees)?
A laser beam enters a 19.5 cm thick glass window at an angle of 49.0 degrees (from the normal). The index of refraction of the glass is 1.42. At what angle from the normal does the beam travel through the glass (in degrees)?
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