Refraction Of Light Through A Glass SlabRefraction through a rectangular glass slab and principle of reversibility of light: Consider a rectangular glass slab, as shown in figure. A ray AE is incident on the face PQ at an angle of incidence i. On entering the glass slab, it bends towards normal and travels along EF at an angle of refraction r. The refracted ray EF is … [Read more...] about Explain Refraction Of Light Through A Glass Slab