Advertisements
Advertisements
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?
Advertisements
उत्तर
Density of water = 1.0 g/cm3
Density of iron = 7.8 × 103 g/cm3 = 7800 g/cm3 (which is much greater than 1.0 g/cm3)
Since iron is much denser than water, A piece of iron will sink in water.
APPEARS IN
संबंधित प्रश्न
A body experiences the same buoyant force while floating in water or alcohol.
A body X sinks in water, but a body Y floats on water. The density of the body X is ......... than the density of body Y.
Why does it happen?
A ship dips to a larger depth in fresh water as compared to marine water.
Differentiate between thrust and pressure.
Why do sea divers need special protective suit?
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
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.
Pressure in a water pipe on the ground floor of a building is 100,000 Pa. Calculate the pressure in the water pipe on the first floor at a height of 3 m. [Density of water = 1000 kgm−3 ; g = 10 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]
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : ______
