The temperature of a thin rod is slightly increased by If the coefficient of linear expansion be , then its moment of inertia I about the perpendicular bisector will change by :
The average kinetic energy of a gas molecule at 27o C is 6.21 x 10-21 J. Its average kinetic energy at 227o C will be
The coefficient of linear expansion of a crystal in one direction is and that in every direction perpendicular to it is . The coefficient of cubical expansion is :
None of these
A pendulum clock keeps correct time at 0o C. If the coefficient of linear expansion is , then what will be the loss in time per day, when the temperature rises by toC ?
If the degree of freedom of a gas is f, then the ratio of two specific heats Cp /Cv is equal to :
