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प्रश्न
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
विकल्प
Ture
False
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उत्तर
True.
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संबंधित प्रश्न
The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will
State the laws of liquid pressure.
What is meant by the term buoyancy?
Define upthrust and state its S.I. unit.
A small block of wood is completely immersed in (i) water, (ii) glycerine and then released. In each case, What do you observe? Explain the difference in your observation in the two cases.
Prove that the loss in weight of a body when immersed wholly or partially in a liquid is equal to the buoyant force (or upthrust) and this loss is because of the difference in pressure exerted by liquid on the upper and lower surfaces of the submerged part of body.
The S.I. unit of upthrust is :
You are provided with a hollow iron ball A of volume 15 cm3 and mass 12 g and a solid iron ball B of mass 12 g. Both are placed on the surface of water contained in a large tub.
- Find upthrust on each ball.
- Which ball will sink? Give a reason for your answer (Density of iron = 8.0 g cm-3)
Is thrust a scalar or vector quantity?
A body will sink if the weight of the body is greater than the buoyant force.
