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प्रश्न
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
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उत्तर
h ρ g
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.
Name the S.I. unit of density. How is it related to g Cm-3?
A vessel contains water up to a height of 1.5 m. Taking the density of water 103 kg m-3, acceleration due to gravity 9.8 m s-2 and area of base of vessel 100 cm2, calculate: (a) the pressure and (b) the thrust at the base of vessel.
- 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?
It is easier to lift a heavy stone under water than in air. Explain.
A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:
- the volume of body,
- the upthrust on body and
- the apparent weight of body in water.
Select the correct option:
When a body is wholly or partially immersed in a liquid, it experiences a buoyant force which is equal to:
How is thrust different from pressure?
In a fluid, buoyant force exists because the pressure at the ______ of an object is greater than the pressure at the top.
