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11. An equi convex glass lens (i) has focal length f and power P. If is cut into two symmetrical halves (i)by a plane containing the principal axis. The two pieces are recombined as shown in fig. The powerof new combination is(3) 2P4) Zero |
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Answer» 11. An equi convex glass lens (i) has focal length f and power P. If is cut into two symmetrical halves (i) by a plane containing the principal axis. The two pieces are recombined as shown in fig. The power of new combination is (3) 2P 4) Zero |
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