A piece of pure gold ( = 19.3 gcm-3 ) is suspected to be hollow from inside. It weighs 77.2 g in air and 71.2 g in water.The volume of the hollow portion in gold will be
3 cm3
1 cm3
2 cm3
4 cm3
In case of hydrometer, the density of liquid is equal to:
Two metallic spheres of different materials immersed in water experience equal upthrust. Then both the spheres have equal:-
weights in air
densities
masses
volumes
A spring balance records a weight of one kgf when a body is suspended from it. When the body is fully immersed ina liquid ,the reading recorded by the spring balance is zero.What is the apparent density of the body ?
0.5 kg m-3
2 kg m-3
0 kg m-3
1 kg m-3
A substance floats in water, but sinks in coconut oil. The density of the substance
is less than the density of water and equal to the density of oil
is greater than the density of oil and equal to the density of water
is less than the density of water and greater than the density of oil
cannot be decided based on the given information.
For what purpose is the acid battery hydrometer used?
To find the density of hydrochloric acid in an acid battery
To find the relative density of sulphuric acid in an acid battery
To find the density of sulphuric acid in an acid battery
To find the relative density of hydrochloric acid in an acid battery
A body weighs 40 gf in air, 36.4 gf in liquid and 36 gf in water. Calculate relative density of the body.
10
100
1000
1
Express the relationship between the C.G.S and S.I units of density.
1 g cm-3 = 10 kg m-3
1 g cm-3= 100 kg m-3
1 g cm-3= 1000 kg m-3
1000 g cm-3 = 1 kg m-3
How is the density of a metallic piece affected, if at all, with increase in temperature?
It becomes negligible.
It increases.
It remains unchanged.
It decreases.
When an object is made to float in two different liquids of density d1 and d2 the lengths of the object seen above the liquid surface are respectively. Which of the following is the correct?
