question_answer

According to the experiment of Ingen Hausz the relation between the thermal conductivity of a metal rod is K  and the length of the rod whenever the wax melts is  [UPSEAT 1999]

A)            K/l  = constant                     

B)            \[{{K}^{2}}/l\]= constant

C)            \[K/{{l}^{2}}\]= constant 

D)            \[Kl\]= constant