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A meniscus lens is made with the radius of curvature of the convex surface being 45.0...

A meniscus lens is made with the radius of curvature of the convex surface being 45.0 cm and the concave surface 25.0 cm. If the glass used has index of refraction 1.50, what is the focal length of this lens?

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Answer #1

As we know that;

Here,

We use lens maker formula is,

轧R2 en 45 95 5- US x 25

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