Advertisements
Advertisements
प्रश्न
The density of iron is 7800 kg m-3. What do you mean by this statement? What is density of water at 40C?
Advertisements
उत्तर
Density of iron is 7800Kgm-3.
This means a cube of iron having side 1m would weigh 7800 Kg.
Density of water at 4oC is 1000 Kgm-3.
APPEARS IN
संबंधित प्रश्न
State Pascal's law of transmission of pressure.
Explain the principle of a hydraulic machine. Name two devices which work on this principle.
Explain the working of a hydraulic brake with a simple labelled diagram.
A force of 50 kgf is applied to the smaller piston of a hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the diameters of the pistons are 5 cm and 25 cm respectively.
At a given place, a barometer records 70 cm of Hg. If the mercury in the barometer is replaced by water, what would be resulting in reading? (Density of Hg = 13600 kg/m3; Density of water = 1000 kg/m3)
What is the use of altimeter?
State two uses of a hydraulic press.
For what purpose is the acid battery hydrometer used?
Hydraulic lift works under the principle of _______.
