A thin concave and a thin convex lens are in contact. The ratio of the magnitude of power of two lenses is 3/2 and focal length of combination is 30 cm, then focal length of individual lenses are (concave and convex)
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A thin concave and a thin convex lens are in contact. The ratio of the magnitude of power of two lenses is 3/2 and focal length of combination is 30 cm, then focal length of individual lenses are (concave and convex)