question archive A light ray strikes a plane mirror lying flat on a horizontal floor, making an angle of incidence of 64
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A light ray strikes a plane mirror lying flat on a horizontal floor, making an angle of incidence of 64.9°. After reflecting from the mirror, the ray makes a spot on a vertical wall. The wall is a horizontal distance d= 1.26 m from the point of reflection, as shown. How high from the floor is the spot on the wall? (Neglect the thickness of the mirror.)