A convex meniscus lens is made from glass with refractive index n = 1.52. If the radius of curvature of the convex surface is 20 cm and that of the concave surface is 40 cm, then find out the focal length.
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A convex meniscus lens is made of glass with a refractive index, n = 1.5. The radius of curvature of the concave surface is 46.2 cm and the radius of curvature of the convex surface is 22.4 cm.
a) Calculate the focal length of the lens.
b) Determine the position of the image of an object which is placed 2.0 m in front of the lens
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