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प्रश्न
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उत्तर
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संबंधित प्रश्न
Define the term density.
How does the density ρs of a substance determine whether a solid piece of that substance will float or sink in a given liquid ρL?
Explain the following :
An egg sinks in fresh water, but floats in a strong salt solution.
A rubber ball floats on water with its 1/3rd volume outside water. What is the density of rubber?
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)
A body of mass 50 g is floting in water. What is the apparent weight of body in water? Explain your answer.
A solid body weighs 2.10 N. in air. Its relative density is 8.4. How much will the body weigh if placed
(1) in water,
(2) in liquid of relative density 1.2?
Select the correct option:
The SI unit of density is:
Select the correct option:
A body has density 9.6 gcm -3. Its density in SI system is:
A wooden cube of side 10 cm has a mass of 700 g. It will float in the water with:
(a) Half of its volume inside the water
(b) 3 cm height above the water surface
(c) 7 cm height above the water surface
(d) Just inside the water surface.
