A substance of mass in kg requires it power input of P watt to remain in the molten state at its melting point. When the power is turned off, the sample completely solidifies in time t sec. The latent hent of fusion of the substance is

A substance of mass in kg requires it power input of P watt to remain

1.	A substance of mass in kg requires it power input of P watt to remain in the molten state at its melting point. When the power is turned off, the sample completely solidifies in time t sec. The latent hent of fusion of the substance is
Answer» `(PM)/t` `(PT)/m` `m/(Pt)` `t/(Pm)` ANSWER :B