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When a body is immersed partly or wholly in a liquid, there is an apparent loss in weight of the body which is equal to the weight of liquid displaced by the body.

  • A.True
  • B.False
  • C.May be
  • D.Not sure

Answer: A

True. This is Archimedes' principle.

The apparent loss in weight equals the weight of the fluid displaced: \[F_B = \rho_{fluid}V_{displaced}\,g\] It follows from the pressure being greater at the bottom of the immersed body than at the top.

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