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प्रश्न
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
पर्याय
Ture
False
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उत्तर
True.
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संबंधित प्रश्न
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body D having density 0.85 g m-3
Explain why an iron needle sinks in water, but a ship made of iron floats on water.
Define the term thrust. State its S.I. unit.
What is meant by the term buoyancy?
How is the upthrust related to the volume of the body submerged in a liquid?
A body weighs 450 gf in air and 310 gf when completely immersed in water. Find
(i) The volume of the body,
(ii) The loss in weight of the body, and
(iii) The upthrust on the body.
State the assumption made in part (i).
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)
Calculate the hydrostatic pressure exerted by water at the bottom of a beaker. Take the depth of water as 40 cm, the density of water 1000 kgm−3 and g = 9.8 ms−2.
The blood pressure reading of a patient is recorded 160/100. Express the lower pressure in SI units.
[Take density of mercury as 13.6 × 103 kgm−3 and the value of ‘g’ as 10 ms−2]
Most buoyant objects are those with relatively ______.
- high volume
- higher mass
- low density
- less viscosity
