With rise in temperature, density of a given body changes according to one of the following relations

With the rise in temperature of air its density increases.

With a rise in temperature, the density increases maximum in case of

The mean free path of a gas varies with the density of gas according to the following relation:

The mean free path of a gas varies with the density of gas according to the following relation:

How does the density of a body change with temperature ?

Which group of animal depend on their environment for temperature regulationi.e. they change body temperature according to temperature of environment.

Assertion : A change in the temperature of a body cause change in dimentions. Reason : The dimentions of a body decrease due to the increase in its temperature.