Advertisements
Advertisements
प्रश्न
How does the density of material of a body determine whether it will float or sink in water?
Advertisements
उत्तर
The bodies of average density greater than that of the liquid sink in it. While the bodies of average density equal to or smaller than that of liquid float on it.
APPEARS IN
संबंधित प्रश्न
How are the (i) Mass, (ii) Volume and (iii) Density of a metallic piece affected, if at all, with an increase in temperature?
Complete the following sentence.
S.I. unit of density is .......... .
Complete the following sentence.
Density in kg m-3 = ............ × density in g cm-3
Differentiate between density and relative density of a substance.
Relative density of a substance is expressed by comparing the density of that substance with the density of :
A piece of stone of mass 15.1 g is first immersed in a liquid and it weighs 10.9 gf. Then on immersing the piece of stone in water, it weighs 9.7 gf. Calculate:
- The weight of the piece of stone in air,
- The volume of the piece of stone,
- The relative density of stone,
- The relative density of the liquid.
A piece of stone of mass 113 g sinks to the bottom in water contained in a measuring cylinder and water level in cylinder rises from 30 ml to 40 ml. Calculate R.D. of stone.
A solid of R.D. 4.2 is found to weigh 0.200 kgf in air. Find its apparent weight in water.
Calculate the mass of a body whose volume is 2m3 and relative density is 0.52.
A piece of metal weighs 44.5 gf in air, 39.5 gf in water. What is the R.D. of the metal?
