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प्रश्न
What do you mean by buoyancy?
उत्तर
All liquid exerts a upward force on the body placed in it. This Phenomenon is called buoyancy.
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संबंधित प्रश्न
A body experiences the same buoyant force when it floats or sinks in water.
The buoyant force experienced by a body when floating in saltwater is ....... to or same that of when floating in pure water.
Define the term Density of a substance.
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?
Why does it happen?
A ship dips to a larger depth in fresh water as compared to marine water.
State the laws of liquid pressure.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
A body will experience minimum upthrust when it is completely immersed in :
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.
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
