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प्रश्न
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उत्तर
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संबंधित प्रश्न
Define the term density.
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 .
A piece of iron weighs 44.5 gf in air. If the density of iron is 8.9 × 103, find the weight of iron piece when immersed in 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.
Explain the following :
A balloon filled with hydrogen rises to a certain height and then stops rising further.
Explain the following :
A ship submerges more as it sails from sea water to river water.
A hollow cylinder of copper of length 25 cm and area of cross-section 15 cm2, floats in water with 3/5 of its length inside water. Calculate:
(1) apparent density of a hollow copper cylinder.
(2) wt. of cylinder.
(3) extra force required to completely submerge it in water.
Select the correct option:
When a body is floating in a liquid:
