question archive A light ray leaves point A in Figure 1, reflects from the mirror, and reaches point B
A light ray leaves point A in Figure 1, reflects from the mirror, and reaches point B
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A light ray leaves point A in Figure 1, reflects from the mirror, and reaches point B. How far below the top edge does the ray strike the mirror? What if the distance from point B to the mirror was reduced by 5 cm? 7?
