Can a convex lens behave as divergng lens .If yes ,how and if no why
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Yes. Convex lens can behave as a diverging lens in specific condition. Condition: When a convex lens is placed inside a liquid of refractive index greater than that of the material of the lens, it behaves like a diverging lens.
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Yes, but in very specific circumstances: if the lens is made of material that has lower refractive index than the surrounding environment.
Since lens’s properties is strongly dependent on the refractive indices of both lens material and environment it is in, lower index in lens over environment’s will make it act in an opposite way.
For example, an air bubble in water will act as diverging lens, while having appearance of a strongly curved convex lens.
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