Show that the incident ray of light is parallel to the emergent ray of light when light falls obliquely on a side of a rectangular glass slab. The principle of reversibility of light states that, if the direction of a ray of light is reversed due to reflection or refraction, then it will retrace its path.
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Show that the incident ray of light is parallel to the emergent ray of light when light falls obliquely on a side of a rectangular glass slab. The principle of reversibility of light states that, if the direction of a ray of light is reversed due to reflection or refraction, then it will retrace its path.