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प्रश्न
Complete the analogy.
Downward force: Weight:: Upward force offered by liquid: _____
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उत्तर
Downward force: Weight:: Upward force offered by liquid: Buoyant force.
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संबंधित प्रश्न
The S.I. unit of density is ..........
The buoyant force experienced by a body when floating in saltwater is ....... to or same that of when floating in pure water.
If a fresh egg is put into a beaker filled with water, it sinks. On dissolving a lot of salt in the water, the egg begins to rise and then floats. Why ?
How does the density of a body and that of a liquid determine whether the body will float or sink into that liquid?
Why does a piece of ice float on water?
Differentiate between thrust and pressure.
Explain the following statement:
Sleepers are laid below the rails.
A body will experience minimum upthrust when it is completely immersed in :
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)
What is the centre of buoyancy? State its position for a floating body with respect to the centre of gravity of the body.
