When two bodies and are kept in contact, it is found that heat gets transferred from Q to P.
Which of the two (Por Q) is hotter?

When two bodies and are kept in contact, it is found that heat gets transferred from Q to P. Which physical quantity determines the direction of transfer of heat energy?

Two bodies at different temperatures are placed in contact. State the direction in which the heat will flow.

When two semiconductor of p and n type are brought in to contact, they from a p-n junction which acts like a :-

Two bodies P and Q of equal masses are suspended from two separate massless springs of force constants k_(1) and k_(2) respectively. If the two bodies oscillate vertically such that their maximum velocities are equal. The ratio of the amplitude of P to that of Q is

Two charge +aq and -q are kept apart. Then , at any point on the right bisector of line joining the two charge

Two point electric charges of value q and 2q are kept at a distance d apart from each other in air. A third charge Q is to be kept along the same line in such a way that the net force action on q and 2q is zero. Calculate the position of charge Q in terms of q and d .

Two similar spheres having +q and -q charges are kept at a certain distance. The force acts between the two is F . If in the middle of two spheres, another similar sphere having +q charge is kept,then it experience a force in magnitude and direction as

Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100^(@)C . While the other one is at 0^(@)C . If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is

P and Q are two arbitrarily chosen intensive variables then