Pick out the correct relation.
F = C
In a thermos flask, the vacuum between its walls reduces the heat loss by
Conduction
Convection
Radiation
Both 1 and 2
Superficial expansion associate with
expansion in length
expansion in area
expansion in volume
expansion in mass
For making glassware we use Pyrex glass because,
of its high coefficient of cubical expansion
of its high coefficient of thermal expansion
of its very low coefficient of cubical expansion
of its very low coefficient of thermal expansion
Railway tracks are made up of
Cobalt
Nickel
Chromium
Steel
Which of the following is a good conductor of heat?
Copper
Paper
Wood
Cloth
From the following quantity which one is measured using the principle of calorimetry ?
Temperature
work
force
Heat
What happens to the density of a substance when it is heated ?
decrease
increase
remain same
none of these
Density of water is maximum at
0oC
100oC
4oC
10oC
The expansion of solids on heating and contraction on cooling is called
Thermal expansion
Normal expansion
Elastic expansion
elongation