Consider a ferromagnetic substance heated to temperatures above Curie temperature `(T_(c))`. If it has susceptibility `chi_(1)` at temperature `2T_(c)` and has susceptibility `chi_(2)` at temperature `4T_(c)` then, what is the value of `chi_(1)`/ `chi_(2)`?

On heating a ferromagnetic substance above curie temperature

At a temperature of 30^(@)C , the susceptibility of ferromagnetic material is found to be 'chi' its susceptibility at 333^(@)C is

The variation of magnetic susceptibility (chi) with temperature for a diamagnetic substance is best represented by

The variation of magnetic susceptibility (chi) with temperature for dimagnetic substance is represented by

Magnetic susceptibility of diamagnetic substances depends upon the absolute temperature T as

The variation of magnetic susceptibility (chi) with absolute temperature T for a ferromagnetic material is

The average velocity of CO_(2) at the temperature T_(1)K and maximum (most) proable velocity of CO_(2) at the temperature T_(2) K is 9xx10^(4) cm s^(-1) . Calculate the values of T_(1) and T_(2) .

The average velocity of CO_(2) at the temperature T_(1)K and maximum (most) proable velocity of CO_(2) at the temperature T_(2) K is 9xx10^(4) cm s^(-1) . Calculate the values of T_(1) and T_(2) .

Which has the maximum osmotic pressure at temperature T ?

Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T_1 and rejects the heat to the sink at temperature T. The second engine B receives the heat at temperature T and rejects to its sink at temperature T_(2) . For what value of T the efficiencies of the two engines are equal?