Give an example of volume expansion of a liquid on heating. The area of a solid substance at a temperature of `T_1K` is `A_1` sq m and that at a temperature of `T_2K` is `A_2` sq m.Write down the mathematical expression for the coefficient of area expansion-with unit, of that solid substance.

A liquid of mass M and specific heat S is at a temperature 2t. If another liquid of thermal capacity 1.5 times, at a tempera-ture of (t)/(3) is added to it, the resultant temperature will be

Prove that the change in the time period t of a simple pendulum due to a change DeltaT of temperature is, Deltat=1/2alphatDeltaT , where alpha = coefficient of linear expansion.

A closed vessel of fixed volume is filled with 3.2g O_(2) at a pressure of P atm and at a temperature of TK. The container is then heated to a temperature of (T+30)K. to maintain the pressure of P atm inside the container at (T+30)K, a certain amount of gas is removed from the container. the gas removed is found to have a volume of 246 mL at 1 atm and 27^(@)C . calculate T.

Apparent weights of a body immersed in a liquid at the temperature t_(1) is W_(1) and temperature t_(2) is W_(2) . Coefficients of volume expansion of the liquid and the solid are gamma and gamma_(s) respectively. The value of W_(2)-W_(1) will be

Molecular velocities of two gases at the same temperature (T) are u_1 and u_2 . Their masses are m_1 and m_2 respectively. Which of the following expressions is correct at temperature T ?

The area of the triangle with vertices (-1,m),(3,4) (m-2,m) is 1" sq.units , " then find the value of m.