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प्रश्न
What is the cause of buoyant force ?
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उत्तर
Buoyant force is exerted by the pressure difference in the surrounding medium caused by gravity.
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संबंधित प्रश्न
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.
A body experiences the same buoyant force when it floats or sinks in 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 ?
Which of the following will sink or float on water? (Density of water = 1 g Cm-3) body B having density 2520 kg m-3
What is meant by pressure? State its S.I. unit.
Complete the following sentence :
Pressure at all points at the same depth is ....................
Is pressure a vector quantity?
Complete the analogy.
Downward force: Weight:: Upward force offered by liquid: _____
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
