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प्रश्न
What is meant by up thrust?
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उत्तर
The upward force which any liquid exerts upon a body placed in it is called the upthrust.
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संबंधित प्रश्न
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
A body while floating sinks deeper in a liquid of low density than in a liquid of high density.
What is the cause of buoyant force ?
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Answer the following:
Will a piece of iron float or sink in mercury?
What is meant by pressure? State its S.I. unit.
State the laws of liquid pressure.
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.
A body is held inside water contained in a vessel by tying it with a thread to the base of the vessel. Name the three forces that keep the body in equilibrium, and state the direction in which each force acts.
Define atmospheric pressure diving suits. Does a diving suit create buoyancy?
In a fluid, buoyant force exists because the pressure at the ______ of an object is greater than the pressure at the top.
