Advertisements
Advertisements
प्रश्न
Define density. What is the SI unit of density ?
Advertisements
उत्तर
Density is defined as the mass per unit volume of a substance. The symbol for density is ρ. Mathematically, density is defined as `ρ = m/V`
The SI unit of density is kg/m3.
APPEARS IN
संबंधित प्रश्न
What is the difference between the density and relative density of a substance ?
Write down an equation that defines density.
The density of turpentine is 840 kg/m3. What will be its relative density ? (Density of water = 1000 kg/m3)
A piece of steel has a volume of 12 cm3, and a mass of 96 g. What is its density in g/cm3 ?
An object is put in three liquids having different densities, one by one. The object floats with `1/9` , `2/11` and `3/7` parts of its volume outside the surface of liquids of densities d1, d2 and d3 respectively. Which of the following is the correct order of the densities of the three liquids?
The relative densities of four liquids P, Q, R and S are 1.26, 1.0, 0.84 and 13.6 respectively. An object is floated in all these liquids, one by one. In which liquid the object will float with its maximum volume submerged under the liquid?
The density of water is 1000 kg/m3 and the density of copper is 8900 kg/m3. Which of the following statements is incorrect?
Why is it easier to swim in seawater than in river water?
Numerical Problem.
Density of mercury is 13600 kg m–3. Calculate the relative density.
To find out the relative density of the substance, with respect to the density of water ______C is taken.
