A.volumetric expansion of mercury with increase in temperature
B.increase of vapour pressure with increase in temperature
C.increase of electrical resistance with increase in temperature
D.decrease of vapour pressure with increase in temperature
A.4.1 to 74.2 %
B.5.3 to 14.0 %
C.3.2 to 12.5 %
D.1.6 to 8.5 %
A.2N years
B.N2 years
C.N2 years
D.infinity
A.If a physical body is impermeable to any kind of rays
B.If the parts of a body are not in motion relative to one another
C.If the bodies are kept in vacuum
D.If the bodies are immersed in water
E.If the temperature difference between the bodies does not exist
A.are low boiling oxygen compounds
B.are desirable in gasoline
C.decrease the octane number of gasoline
D.are not corrosive
A.?30? to 350?C
B.?20? to 1600?C
C.60? to 600?C
D.0? to 600?C
A.Curie
B.Fermi
C.Angstron
D.Candle
A.increasing the capacity of storage reservoirs
B.increasing flow of sewage through Imhoff tanks
C.reducting the excessive flow in sewers
D.disposing sludge
