Advertisements
Advertisements
प्रश्न
A piece of steel has a volume of 12 cm3, and a mass of 96 g. What is its density in g/cm3 ?
उत्तर
ρ (density of steel piece) = ?
V (volume of steel piece) = 12 cm3
m (mass of steel piece) = 96 g
`ρ = m/V`
= `96/12`
ρ = 8 g/cm3
Ans: Density of steel piece = 8 g/cm3.
APPEARS IN
संबंधित प्रश्न
What is the mass of 5 m3 of cement of density 3000 kg/m3 ?
Calculate the density of an object of volume 3 m3 and mass 9 kg. State whether this object will float or sink in water. Give reason for your answer.
Write down an equation that defines density.
Define density. What is the SI unit of density ?
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?
Numerical Problem.
Density of mercury is 13600 kg m–3. Calculate the relative density.
A cube of side 5 cm is immersed in water and then in a saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Give a reason for each case.
A ball weighing 4 kg of density 4000 kg m–3 is completely immersed in water of density 103 kg m–3 Find the force of buoyancy on it. (Given g = 10 m s–2)
The density Bottle is also called ______.
