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प्रश्न
Fill in the blank with suitable word :
It is the................. force which makes objects appear lighter in water.
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उत्तर
It is the buoyant force which makes objects appear lighter in water.
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संबंधित प्रश्न
The buoyant force experienced by a body when floating in saltwater is ....... to or same that of when floating in pure water.
What is the cause of buoyant force ?
The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will
- Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g cm-3.
- Will the height of the water column in part (a) change if the cross-section of the water column is made wider?
In what direction and at what point does the buoyant force on a body due to a liquid act?
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.
Select the correct option.
The unit Nm2 is the unit of
A beaker contains a liquid of density ‘ρ’ up to height ‘h’ such that ‘PA’ is atmospheric pressure and ‘g’ is the acceleration due to gravity. Answer the following questions:
- What is the pressure on the free surface of the liquid?
- What is the pressure on the base of the beaker?
- What is the lateral pressure at the base on the inner walls of the beaker?
What do you mean by buoyancy?
The magnitude of buoyant force acting on an object immersed in a liquid depends on ______ of the liquid.
