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A convex lens is cut into two parts in different ways that are arranged in four manners, as shown. Which arrangement will give maximum optical power?

Correct answer

0

Step-by-step solution

We know that power is inversely proportional to focal length for a given lens. The point at which the parallel beam converges after passing through the lens is the focus. So highly convergent lens will have less focal length therefore maximum power. Among the given pictures converging power is high for this one as there are two converging lenses with principal axis coinciding.

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