each having same focal length of 25 cm
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is
20
Aug
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is A convex lens and a concave lens are put in contact to form a combination of lenses. The power in diopters of [...]