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A bicovex lens has radii of cuvature 20 ...

A bicovex lens has radii of cuvature 20 cm each. If the refractive index of the material of the lens is 1.5, what is its focal length?

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To find the focal length of a biconvex lens with given radii of curvature and refractive index, we can use the lens maker's formula. Here’s a step-by-step solution: ### Step 1: Identify the parameters - The lens is biconvex, which means it has two convex surfaces. - The radius of curvature (R) for both surfaces is given as 20 cm. - The refractive index (μ) of the lens material is 1.5. ### Step 2: Assign the radii of curvature ...
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