1.

A double convex lens has a focal length of 40 cm. If the radius of curvature of its refracting surfaces are 10 cm and 20 cm, find the refractive index of the material of the lens.

Answer»

A double convex lens has a focal length of 40 cm. If the radius of curvature of its refracting surfaces are 10 cm and 20 cm, find the refractive index of the material of the lens.



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