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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
In which direction does the buoyant force on an object due to a liquid act ?
Why does a block of wood held under water rise to the surface when released ?
A body X sinks in water, but a body Y floats on water. The density of the body X is ......... than the density of body Y.
For a given object, the buoyant force in liquids of different ______ is ______.
Write an expression for the pressure at a point inside a liquid. Explain the meaning of the symbols used.
Complete the following sentence :
Pressure at all points at the same depth 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)
Select the correct option.
Unit of thrust in the SI system is
The point at which the force of buoyancy is supposed to act is known as ______.
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : ______
