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प्रश्न
'The density of iron is 7800 kg m-3'. What do you understand by this statement?
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उत्तर
It means the mass of 1 m-3 of iron is 7800 kg.
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संबंधित प्रश्न
Define the term density.
The density of water is :
A body floats in a liquid with a part of it submerged inside the liquid. Is the weight of floating body greater than, equal to or less than the upthrust?
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.
Explain the following :
A ship submerges more as it sails from sea water to river water.
A block of wood of mass 24 kg floats on water. The volume of wood is 0.032 m3. Find:
- the volume of block below the surface of water,
- the density of wood.
(Density of water = 1000 kg m−3)
When a piece of ice floating in water melts, the level of water inside the glass remains same. Explain.
A body of mass ‘m’ is floating in a liquid of density ‘p’
what is the apparent weight of body?
Select the correct option:
When a body is floating in a liquid:
A body weighs 300 gf in air and 280 gf when completely immersed in water. Calculate:
(i) The loss in weight of the body,
(ii) The upthrust on the body.
