02 acombination of two thin convex lenses of equal focal lengths, is kept separated along the optic axes by a distance of 20cm between them. the combination beh

02 Acombination of two thin convex lenses of equal focal lengths, is kept separated along the optic axes by a distance of 20cm between them. The combination behaves as a lens System of infinite focal length. If an object is kept at 10 cm from the first lens, its image will be formed on the other side at a distance x from the second lens. The value of x is (a) 10cm (b) 20 cm (c) 6.67 cm (d) infinite