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Find the critical angle if the plastic is immersed in water

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1. A piece of lucite (transparent plastic) has an index of refraction of 1.45. Find the critical angle (for total internal reflection) if the plastic is in air. Now find the critical angle if the plastic is immersed in water. In both cases, we are considering a ray of light inside the lucite, hitting the interface between lucite and air or lucite and water.

2 A mylar balloon has a shiny surface with a radius of curvature of 0.80 m. Suppose you look at the balloon, with your face 1.0 m from its surface. How far below the surface is the image of your face? Draw a ray-tracing diagram illustrating this situation. Make the draw TO SCALE AND ACCURATE, with a scale of 1.0 m = 10 cm (that is, 10 to 1 reduction.)

Reference no: EM13965095

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