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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
Relative density of a substance is expressed in g cm-3.
A body experiences the same buoyant force when it floats or sinks in water.
Why does a piece of ice float on water?
What is meant by the term buoyancy?
It is easier to lift a heavy stone under water than in air. Explain.
Complete the following sentence :
A piece of wood is held under water. The upthrust on it will be ___________ the weight of the wood piece.
A body weighs 450 gf in air and 310 gf when completely immersed in water. Find
(i) The volume of the body,
(ii) The loss in weight of the body, and
(iii) The upthrust on the body.
State the assumption made in part (i).
A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:
- the volume of body,
- the upthrust on body and
- the apparent weight of body in water.
What is meant by up thrust?
The magnitude of buoyant force acting on an object immersed in a liquid depends on ______ of the liquid.
