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प्रश्न
Select the correct option:
When a body is wholly or partially immersed in a liquid, it experiences a buoyant force which is equal to:
पर्याय
volume of liquid displaced by it
weight of liquid displaced by it
both volume of liquid displaced by it and weight of liquid displaced by it
none of the above
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उत्तर
weight of liquid displaced by it
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संबंधित प्रश्न
Name the S.I. unit of density. How is it related to g Cm-3?
What is meant by pressure? State its S.I. unit.
State three factors on which the pressure at a point in a liquid depends.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
Complete the following sentence :
Pressure is .................... in all directions about a point in a liquid.
A block of iron of mass 7.5 kg and of dimensions 12 cm × 8 cm × 10 cm is kept on a table top on its base of side 12 cm × 8 cm.
Calculate:
- Thrust and
- Pressure exerted on the table top
Take 1 kgf = 10 N.
Prove that the loss in weight of a body when immersed wholly or partially in a liquid is equal to the buoyant force (or upthrust) and this loss is because of the difference in pressure exerted by liquid on the upper and lower surfaces of the submerged part of body.
A homogeneous block floats on water (a) partly immersed (b) completely immersed. In each case state the position of centre of buoyancy B with respect to the centre of gravity G of the block.
Select the correct option:
When an object sinks in a liquid, its:
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : ______
