Question

A solid iron ball of mass 500 g is dropped in mercury contained in a beaker. (a) Will the ball float or sink? Give reason. (b) What will be the apparent weight of ball? Give reason.

  • Category: Upthrust in Fluids Archimedes' Principle and Floatation Class 9 ICSE
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Answer

  1. When a solid iron ball of mass 500 g is dropped in mercury contained in a beaker, the ball will float because the density of the iron ball is less than the density of mercury.
  2. The apparent weight of the ball is zero because while floating upthrust is equal to the weight of the body.

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