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प्रश्न
Explain the meaning of the statement
‘Relative density of aluminium is 2.7’.
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उत्तर
The statement ‘Relative density of aluminium is 2.7’ means a piece of aluminium of any volume has mass 2.7 times that of an equal volume of water. i.e. Aluminium is 2.7 times heavier than water.
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संबंधित प्रश्न
If a fresh egg is put into a beaker filled with water, it sinks. On dissolving a lot of salt in the water, the egg begins to rise and then floats. Why ?
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What happens to the buoyant force on the boat ?
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Ans the following:
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Why does a piece of ice float on water?
Deduce an expression for the pressure at depth inside a liquid.
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Explain why a gas bubble released at the bottom of a lake grows in size as it rises to the surface of the lake.
What do you understand by the term upthrust of a fluid? Describe an experiment to show its existence.
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
Salt water provides less buoyant force than freshwater.
