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1. Shown below is the path of a ray of orange light (? = 620 nm)...

1. Shown below is the path of a ray of orange light (? = 620 nm) passing through a transparent plastic cylinder with an index of refraction of 1.63. The radius of the cylinder is 0.20 mm. (a) What is the angle of incidence ?1? [Hint: The identity sin(2?) = 2 sin ? cos ? is useful] (b) What is the distance d between the incident ray and a line parallel to it and passing through the centre of the cylinder? (c) What are the frequency and the wavelength of the light inside the cylinder?
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