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प्रश्न
A body dipped into a liquid experiences an upthrust. State two factors on which upthrust on the body depends.
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उत्तर
Upthrust on a body depends on the following factors:
(i) Volume of the body submerged in the liquid or fluid.
(ii) Density of liquid or fluid in which the body is submerged.
संबंधित प्रश्न
A body of volume 100 cm3 weighs 5 kgf in air. It is completely immersed in a liquid of density 1.8 × 103 kg m-3. Find:
- The upthrust due to liquid and
- The weight of the body in liquid.
What are the units density in (i) C.G.S. and (ii) S.I. system .
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 .
A jeweller claims that he makes ornaments of pure gold that has a relative density of 19.3. He sells a bangle weighing 25.25 gf to a person. The clever customer weighs the bangle when immersed in water and finds that it weighs 23.075 gf in water. With the help of suitable calculations, find out whether the ornament is made of pure gold or not.
[Hint : calculate R.D. of material of bangle which comes out to be 11.6].
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.
A body of mass 50 g is floting in water. What is the apparent weight of body in water? Explain your answer.
An iron nail sinks in the water while an iron ship floats on water. Explain the reason.
What can you say about the average density of a ship floating on water?
Complete the following result:
Density in kg m-3 = ______ x density in g cm-3
