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.
Answer the following:
Will a piece of iron float or sink in mercury?
Advertisements
उत्तर
Density of water 1.0 g Cm-3
Density of piece of iron = 7.8 × 10-3
Density of mercury is 13.6 × 10-3 g Cm-3
Since 7.8 × 10-3 < 13.6 × 10-3
∴ Density of piece of iron is LESS than density of mercury
∴ Piece of iron will FLOAT in mercury
APPEARS IN
संबंधित प्रश्न
In what direction does the buoyant force on an object immersed in a liquid act?
A body experiences the same buoyant force when it floats or sinks in water.
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.
Explain the following statement:
It is easier to cut with a sharp knife than with a blunt one.
Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
A hammer exerts a force of 1.5 N on each of the two nails A and B. The area of cross section of tip of nail A is 2 mm2 while that of nail B is 6 mm2. Calculate pressure on each nail in pascal.
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 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]
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
Select the correct option:
When a body is wholly or partially immersed in a liquid, it experiences a buoyant force which is equal to:
