According to equipartition principle, the energy contributed by each translational degree of freedom and rotational degree of freedom at a temperature T are respectively (\( k_B = \text{Boltzmann constant} \)):
According to the equipartition theorem, each degree of freedom contributes \(\frac{1}{2} k_B T\) to the energy of a system at thermal equilibrium.
This applies equally to both translational and rotational degrees of freedom.
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
Two similar metallic rods of the same length \( l \) and area of cross section \( A \) are joined and maintained at temperatures \( T_1 \) and \( T_2 \) (\( T_1>T_2 \)) at one of their ends as shown in the figure. If their thermal conductivities are \( K \) and \( \frac{K}{2} \) respectively. The temperature at the joining point in the steady state is:

Kepler's second law (law of areas) of planetary motion leads to law of conservation of