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प्रश्न
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
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उत्तर
h ρ g
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संबंधित प्रश्न
What is upthrust ?
A body sinks in a liquid A but floats in a liquid B. The density of liquid A is ....... than the density of liquid B.
How does the density of a body and that of a liquid determine whether the body will float or sink into that liquid?
What is the law of floatation?
Deduce an expression for the pressure at depth inside a liquid.
Will a body weigh more in air or vacuum when weighed with a spring balance? Give a reason for your answer.
The S.I. unit of upthrust is :
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)
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
Write the SI units of Buoyant force
