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A glass prism in the shape of a quarter ...

A glass prism in the shape of a quarter cylinder lies on a horizontal table. A uniform horizontal light beam falls on its vertical plane surface as shown in the figure. If the radius of the cylinder is R = 5cm and the refractive index of the glass is n = 1.5 where on the table beyond the cylinder will a path of light be found? (in cm) Light R

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