Advertisements
Advertisements
प्रश्न
Complete the following sentence.
Density of water is .... ... kg m-3.
Advertisements
उत्तर
Density of water is 1000 kg m-3.
APPEARS IN
संबंधित प्रश्न
A body held completely immersed inside a liquid experiences two forces:
(i) F1, the force due to gravity and
(ii) F2, the buoyant force.
Draw a diagram showing the direction of these forces acting on the body and state the condition when the body will float or sink.
'The density of iron is 7800 kg m-3'. What do you understand by this statement?
A body weighs W gf in air and W1 gf when it is completely immersed in water. Find: (i) Volume of the body, (ii) Upthrust on the body and (iii) Relative density of the material of the body.
A loaded cargo ship sails from sea water to river water. State and Explain your observations.
Explain the following :
A balloon filled with hydrogen rises to a certain height and then stops rising further.
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 cork cut in the form of a cylinder floats in alcohol of density 0.8 gcm-3, such that 3/4 of its length is outside alcohol. If the total length of the cylinder is 35 cm and area of cross-section 25 cm2, calculate:
(1) density of cork
(2) wt. of cork
(3) extra force required to submerge it in alcohol
A trawler is fully loaded in sea water to maximum capacity. What will happen to this trawler, if moved to river water? Explain your answer.
A body of mass 50 g is floting in water. What is the apparent weight of body in water? Explain your answer.
Complete the following result:
Mass = _______ × density
