A convex lens of focal length 20 cm and a concave lens of focal length 56 cm are kept along the same axis with the distance between them. If a parallel beam of light falling on leaves as a parallel beam, then distances in cm will be

A convex lens of focal length 20 cm and a concave lens of focal length 56 cm are kept along the same axis with the distance between them. If a parallel beam of light falling on leaves as a parallel beam, then distances in cm will be

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