[" A plano convex lens of focal length "...

[" A plano convex lens of focal length "30cm],[" has its plane surface silvered.An objectis "],[" placed "40cm" from the lens on the contri "],[" side.The distance of the image from the "],[" lens is "],[[" 1) "18cm,2" ) "24cm," 3) "30cm," 4) "40cm]]

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[" A plano convex lens of focal length "30cm],[" has its plane surface silvered.An objectis "],[" placed "40cm" from the lens on the contri "],[" side.The distance of the image from the "],[" lens is "],[[" 1) "18cm,2" ) "24cm," 3) "30cm," 4) "40cm]]

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