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.

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Solution

(a) The ball will float because the density of ball (i.e. iron) is less than the density of mercury.
(b) While floating, the apparent weight = 0.

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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.

(a) The ball will float because the density of ball (i.e. iron) is less than the density of mercury. (b) While floating, the apparent weight = 0.

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.

(a) The ball will float because the density of ball (i.e. iron) is less than the density of mercury.
(b) While floating, the apparent weight = 0.