A convex lens of focal length 20 cm and another plano convex lens of focal length 40 cm placed co-axially (see figure). The plano convex lens is silvered on plane surface. What should be the distance A convex lens of focal length 20 cm and another plano convex lens of focal length 40 cm placed co-axially (see figure). The plano convex lens is silvered on plane surface. What should be the distance October 8, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related