Within a glass slab, a double convex air bubble is formed. How would the air bubble behave ?
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The air bubble would behave as a diverging lens, because `nu` of air is less than `mu` of glass. However, the geometrical shape of the air bubble shall resemble a double convex lens.
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Assertion : Withing a glass slab, a double convex air bubble is formed. This air bubble behaves like a converging lens. Reason : Refrative index of air is more than the refractive index of glass.
