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प्रश्न
Define buoyant force. Name two factors on which buoyant force depends.
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उत्तर
The upward force exerted by a liquid on a body when immersed in a liquid is known as buoyant force. The buoyant force depends on the following factors:
(i) Size or volume of the body immersed in a liquid.
(ii) The density of the liquid in which the body is immersed.
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संबंधित प्रश्न
What is the scientific name of the 'upward force' acting on an object immersed in a liquid?
What is meant by the term ‘buoyancy’ ?
Relative density of a substance is expressed in g cm-3.
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When does an object float or sink when placed on the surface of a liquid ?
Name the S.I. unit of density. How is it related to g Cm-3?
Complete the following sentence :
Pressure of a liquid at a given depth is .................. To the density of the liquid.
The pressure of water on the ground floor is 40,000 Pa and on the first floor is 10,000 Pa. Find the height of the first floor. (Take : density of water = 1000 kg m-3, g = 10 m s-2)
What do you understand by the term upthrust of a fluid? Describe an experiment to show its existence.
Is thrust a scalar or vector quantity?
