A glass slab made of a material of refractive index n1 is kept in a medium of refractive index n2
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A glass slab made of a material of refractive index n1 is kept in a medium of refractive index n2 . a light ray is incident on the slab . complete the path of rays of light emerging from the glass slab if: (a) n1n2 (b) n1 = n2.
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