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13. Figure shows a weighing-bridge, with...

13. Figure shows a weighing-bridge, with a beaker P with water on one pan and a balancing weight Ron the other. A solid ball Q is hanging with a thread outside water. It has volume 40 cm and weighs 80 g. If this solid is lowered to sink fully in water, but not touching the beaker anywhere, the balancing weight R' will be (A) same as R (B) 40 g less than R (C) 40 g more than R (D) 80 g more than R

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