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A beam of light in air is incident at an angle of 35 degrees to the surface of a rectangular block of clear plastic n 1.49 What is the angle of refraction?
Wiki User
โ 12y ago
It depends on the refractive index of the plastic. There are many different kinds of plastic and they do not have the same refractive index.
Wiki User
โ 12y ago
The angle of refraction can be calculated using Snell's Law: nโsin(ฮธโ) = nโsin(ฮธโ), where nโ is the refractive index of air (1.00), ฮธโ is the angle of incidence (35 degrees), nโ is the refractive index of the plastic (1.49), and ฮธโ is the angle of refraction. Plugging in the values gives: (1.00)sin(35) = (1.49)sin(ฮธโ). Solving for ฮธโ gives an angle of refraction of approximately 23.6 degrees.
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