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Upthrust is equal to the weight of displaced liquid - class-VII

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Multiple Choice

A bob's weight is measured by a spring balance. Its volume is $10 cm^3$. In vacuum it measures $80 g$. What does it weigh in water?

  1. $70 g$
  2. $80 g$
  3. $90 g$
  4. $76 g$
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