Advertisements
Advertisements
Question
A metal in which even iron can float is :
Options
sodium
magnesium
mercury
manganese
Advertisements
Solution
Mercury.
This is because the density of mercury is greater than the iron.
APPEARS IN
RELATED QUESTIONS
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.
Define density. What is the SI unit of density ?
Define relative density. What is the SI unit of relative density ?
When a golf ball is lowered into a measuring cylinder containing water, the water level rises by 30 cm3 when the ball is completely submerged. If the mass of ball in air is 33 g, find its 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?
A solid of density 900 kg/m3 floats in oil as shown in the given diagram. The oil floats on water of density 1000 kg/m3 as shown. The density of oil kg/m3 could be :
The diagrams represent four measuring cylinders containing liquids. The mass and volume of the liquid in each cylinder are stated. Which two measuring cylinder could contain an identical liquid?
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.
Describe the construction and working of the Pycnometer.
