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Refraction through a Rectangular Glass Slab

A beam of lig...

Question

A beam of light travelling in a rectangular glass slab emerges into air. Draw a ray-diagram indicating the change in its path.

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Solution

The ray bends away from the normal.

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falling on a rectangular glass slab

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. Complete the diagram till the ray of light emerges out of the slab. Label on the diagram the incident ray, the refracted ray and the emergent ray.

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