Question

A 1.4 cm tall object is placed 90 cm in front of a convex lens with a focal length of magnitude 40 cm. A compound lens that is made by joining the plane surfaces of two thin plano-convex lenses of different glasses (indices of refraction of the two glasses are 1.5 and 1.6 and the radius of curvature of each convex surface of 60 cm) is placed 80 cm beyond the first lens. a) Where is the image formed? b) What are the nature and the lateral magnification of the image?

          A 1.4 cm tall object is placed 90 cm in front of a convex lens with a focal length of magnitude 40 cm. A compound lens that is made by joining the plane surfaces of two thin plano-convex lenses of different glasses (indices of refraction of the two glasses are 1.5 and 1.6 and the radius of curvature of each convex surface of 60 cm) is placed 80 cm beyond the first lens.
a) Where is the image formed?
b) What are the nature and the lateral magnification of the image?

$A 1.4 cm tall object is placed 90 cm in front of a convex lens with a focal length of magnitude 40 cm. A compound lens that is made by joining the plane surfaces of two thin plano-convex lenses of different glasses (indices of refraction of the two glasses are 1.5 and 1.6 and the radius of curvature of each convex surface of 60 cm) is placed 80 cm beyond the first lens. a) Where is the image formed? b) What are the nature and the lateral magnification of the image?$

Added by Diamond C.

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