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प्रश्न
What do you mean by buoyancy?
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उत्तर
- The upward force exerted by a liquid on an object immersed in it is known as buoyancy.
- When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into the water.
संबंधित प्रश्न
What is meant by the term ‘buoyancy’ ?
Why does a block of wood held under water rise to the surface when released ?
Relative density of a substance is expressed in g cm-3.
The S.I. unit of density is ..........
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The density of brass is 8.4 g cm-3. What do you mean by this statement?
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body D having density 0.85 g m-3
How does the liquid pressure on a diver change if :
The diver moves horizontally?
Why is a force needed to keep a block of wood inside water?
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?
