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प्रश्न
Relative density of a substance is expressed by comparing the density of that substance with the density of :
पर्याय
Air
Mercury
Water
Iron
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उत्तर
Relative density of a substance is expressed by comparing the density of that substance with the density of : Water
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संबंधित प्रश्न
A sphere of iron and another sphere of wood of the same radius are held under water. Compare the upthrust on the two spheres.
[Hint: Both have equal volume inside the water].
A sphere of iron and another of wood, both of same radius are placed on the surface of water. State which of the two will sink? Give a reason for your answer.
What do you understand by the term relative density of a substance?
The unit of relative density is :
Calculate the mass of a body whose volume is 2 m3 and relative density is 0.52.
A solid weighs 120 gf in air and and 105 gf when it is completely immersed in water. Calculate the relative density of solid.
A solid of area of cross-section 0.004 m2 and length 0.60 m is completely immersed in water of density 1000 kgm3. Calculate:
- Wt of solid in SI system
- Upthrust acting on the solid in SI system.
- Apparent weight of solid in water.
- Apparent weight of solid in brine solution of density 1050 kgm3.
[Take g = 10 N/kg; Density of solid = 7200 kgm3]
A solid weighs 105 kgf in air. When completely immersed in water, it displaces 30,000 cm3 of water, calculate relative density of solid.
A piece of metal weighs 44.5 gf in air, 39.5 gf in water. What is the R.D. of the metal?
