A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is
and the refractive index of the lens material is 1.5 , then the focal length of the lens (in
) is(Ray Optics)
A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is and the refractive index of the lens material is 1.5 , then the focal length of the lens (in ) is(Ray Optics)
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