Two beakers, identical in all respects, but made of different materials, are filled with equal amounts of ice at 0^(@) C. Toe ice in one beaker melts in one minute whereas that in the other beaker melts in five minutes. Find the ratio of the thermal conductivities of the material of the two beakers.

Two beakers, identical in all respects, but made of different material

1.	Two beakers, identical in all respects, but made of different materials, are filled with equal amounts of ice at 0^(@) C. Toe ice in one beaker melts in one minute whereas that in the other beaker melts in five minutes. Find the ratio of the thermal conductivities of the material of the two beakers.
Answer» SOLUTION :`A, X and ( theta_1 - theta_2, t_1 // t_2 = 1//5, K_1 t_1 = K_2 t_2, K_1 // K_2 = t_2// t_1 = 1//5`