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प्रश्न
The magnitude of buoyant force acting on an object immersed in a liquid depends on ______ of the liquid.
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उत्तर
The magnitude of buoyant force acting on an object immersed in a liquid depends on density of the liquid.
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संबंधित प्रश्न
Name the force which makes heavy objects appear light when immersed in a liquid.
A body experiences the same buoyant force when it floats or sinks in water.
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is
When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? (g = 10 m s-2)
Explain the meaning of the statement
‘Relative density of aluminium is 2.7’.
Define upthrust and state its S.I. unit.
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from the jar is pumped out? Explain your answer.
The blood pressure reading of a patient is recorded 160/100. Express the lower pressure in SI units.
[Take density of mercury as 13.6 × 103 kgm−3 and the value of ‘g’ as 10 ms−2]
