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A Ray of Monochromatic Light in Air Falls on the Upper

question 70

Multiple Choice

   A ray of monochromatic light in air falls on the upper surface of two parallel-sided slabs of transparent material, as shown in the diagram. The angle of refraction  \phi   in the lower slab is approximately A)  22º B)  30º C)  37º D)  53º E)  60º A ray of monochromatic light in air falls on the upper surface of two parallel-sided slabs of transparent material, as shown in the diagram. The angle of refraction ϕ\phi in the lower slab is approximately


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