Advertisements
Advertisements
प्रश्न
'The density of iron is 7800 kg m-3'. What do you understand by this statement?
Advertisements
उत्तर
It means the mass of 1 m-3 of iron is 7800 kg.
APPEARS IN
संबंधित प्रश्न
A body of density ρ is immersed in a liquid of density ρL. State the condition when the body will (i) float and (ii) sink in the liquid.
A bunch of feathers and a stone of the same mass are released simultaneously in air. Which will fall faster and why? How will your observation be different if they are released simultaneously in vacuum?
Write the density of water at 4°C in S.I. unit .
Complete the following sentence.
Density of water is .... ... kg m-3.
Calculate the mass of air in a room of dimensions 4.5 m × 3.5 m × 2.5 m if the density of air at N.T.P. is 1.3 kgm-3 .
Explain why an iron nail floats on mercury, but it sinks in water.
Hint : Density of iron is less than that of mercury, but more than that of water.
What can you say about the average density of a ship floating on water in relation to the density of water?
Explain the following :
Toy balloons filled with hydrogen rise to the ceiling, but if they are filled with carbon dioxide, then they sink to the floor.
A piece of wax floats on brine. What fraction of its volume is immersed?
Density of wax = 0.95 g cm-3, Density of brine = 1.1 g cm-3.
Select the correct option:
The SI unit of density is:
