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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:
विकल्प
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
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?
A tall vertical cylinder filled with water is kept on a horizontal table top. Two small holes A and B are made on the wall of the cylinder, A near the middle and B just Below the free surface of water. State and explain your observation.
How does the liquid pressure on a diver change if :
The diver moves horizontally?
The pressure P1 at a certain depth in river water and P2 at the same depth in sea water are related as :
A metal solid cylinder tied to a thread is hanging from the hook of a spring balance. The cylinder is gradually immersed into the water contained in a jar. What changes do you expect in the readings of the spring balance? Explain your answer.
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)
Complete the following sentence.
Mass = .................... × density
Select the correct option.
Thrust acting perpendicularly on the unit surface area is called
A body will sink if the weight of the body is greater than the buoyant force.
Complete the analogy.
Downward force: Weight:: Upward force offered by liquid: _____
