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प्रश्न
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
पर्याय
floatation
buoyancy
density
none of these
उत्तर
buoyancy
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संबंधित प्रश्न
What causes buoyant force (or upthrust) on a boat ?
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
Distinguish between density and relative density.
How does the pressure exerted by a solid and fluid differ?
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
Will a body weigh more in air or vacuum when weighed with a spring balance? Give a reason for your answer.
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).
Two spheres A and B, each of volume 100 cm3 is placed on water (density = 1.0 g cm-3). The sphere A is made of wood of density 0.3 g cm-3 and sphere B is made of iron of density 8.9 g cm-3.
- Find:
- The weight of each sphere, and
- The upthrust on each sphere.
- Which sphere will float? Give reason.
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : ______
