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प्रश्न
Select the correct option.
Thrust acting perpendicularly on the unit surface area is called
पर्याय
pressure
moment of force
down thrust
none of these
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उत्तर
pressure
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संबंधित प्रश्न
Relative density of a substance is expressed in g cm-3.
How does the density of a body and that of a liquid determine whether the body will float or sink into that liquid?
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.
Ans the following:
Will a piece of iron float or sink in water?
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?
Write an expression for the pressure at a point inside a liquid. Explain the meaning of the symbols used.
Pressure at the free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related? (b)Which is more P1 or P2?
Why is a force needed to keep a block of wood inside water?
A body will experience minimum upthrust when it is completely immersed in :
Calculate the hydrostatic pressure exerted by water at the bottom of a beaker. Take the depth of water as 40 cm, the density of water 1000 kgm−3 and g = 9.8 ms−2.
What do you mean by buoyancy?
