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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:
विकल्प
floatation
buoyancy
density
none of these
उत्तर
buoyancy
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संबंधित प्रश्न
What is upthrust ?
How is the unit bar related to the S.I. unit pascal?
Two cylindrical vessels fitted with pistons A and B of area of cross-section 8 cm2 and 320 cm2 respectively are joined at their bottom by a tube and they are completely filled with water. When a mass of 4 kg is placed on piston A, Find:
- the pressure on piston A,
- the pressure on piston B, and
- the thrust on piston B.
What do you understand by the term upthrust of a fluid? Describe an experiment to show its existence.
A body experiences an upthrust F1 in river water and F2 in sea water when dipped up to the same level. Which is more, F1 or F2? Give reason.
A body will experience minimum upthrust when it is completely immersed in :
Two identical pieces, one of ice (density = 900kg per meter cube) and other wood (density = 300kg per meter cube) float on water.
- Which of the two will have more volume submerged inside water
- Which of two will experience more upthrust due to water.
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]
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
What do you understand by the term “Buoyancy”.
