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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A convex lens of focal length 20 cm and another plano convex lens of focal length 40 cm are placed co-axially (see figure). The plano convex lens is silvered on plane surface.

A convex lens of focal length 20 cm and another plano convex lens of focal length 40 cm are placed co-axially (see figure). The plano convex lens is silvered on plane surface.

A convex lens of focal length 20 cm and another plano convex lens of focal length 40 cm are placed co-axially (see figure). The plano convex lens is silvered on plane surface.