Define the Thermal expansion.

Define the Cubical expansion.

Define the Linear expansion.

What do you mean by thermal expansion? Define three kinds of thermal expansion.

Define the Superficial expansion.

Some glasses do not break when heated because their thermal expansion is ...................... (large/small) with temperature.

A fluid having a thermal coefficient of volume expansion gamma is filled in a cylindrical vessel up to a height h_0 . The coefficient of linear thermal expansion of the material of the vessel is alpha . If the fluid is heated with the vessel , then find the level of liquid when temperature increases by Deltatheta .

A beaker of height H is made up of a material whose coefficient of linear thermal expansion is 3alpha . It is filled up to the brim by a liquid whose coefficient of volume expansion is alpha . If now the beaker along with its contents is uniformly heated through a small temperature T, the level of liquid will reduced by ("Given, " alphaT ltlt 1)

An iron bar of length 10 m is heated from 0^@C " to " 100^@C . If the coefficient of linear thermal expansion of iron is 10xx10^(-6) .^@C^(-1) , then increase in the length of bar (in cm ) is

The ends Q and R of two thin wires, PQ and RS, are soldered (joined) together. Initially each of the of wire has a length of 1m at 10^@C. Now the end P is maintained at 10^@C, while the ends S is heated and maintained at 400^@C. The system is thermally insultated from its surroundings. If the thermal conductivity of wire PQ is twice that of the wire RS and the coefficient of linear thermal expansion of PQ is 1.2xx10^-5K^-1, the change in length of the wire PQ is

Due to thermal expansion, with rise in temperature