If the ratio of coefficient of thermal conductivity of silver and copper is `10 : 9`, then the ratio of the length upto which wax will melt in Ingen Hauze experiment will be

If the ratio of coefficient of thermal conductivity of silver and copper is 10:9, then the ratio of the lengths upto which wax will melt in Ingen Hausz experiment will be

One end of a copper rod of length 1.0 m and area of cross-section 10^(-3) is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is 92 cal//m-s-.^(@)C and the latent heat of ice is 8xx 10^(4) cal//kg , then the amount of ice which will melt in one minute is

One end of a copper rod of length 1.0 m and area of cross-section 10^(-3) is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is 92 cal//m-s-.^(@)C and the latent heat of ice is 8xx 10^(4) cal//kg , then the amount of ice which will melt in one minute is

The ratio of the coefficient of thermal conductivity of two different materials is 5 : 3 . If the thermal resistance of the rod of same thickness resistance of the rods of same thickness of these materials is same, then the ratio of the length of these rods will be

Ratio of coefficient of thermal conductivity of two different material is 4 : 3. to have same thermal resistance of the two rods of these materials of equal thickness, what should be the ratio of their length ?

The coefficient of the thermal conductivity of copper is 9 times that of steel . In the composite sylindrical bar shown in the figure , what will be the temperature at the junction of copper and steel ?

In the Ingen hausz method to compare the thermal conductivities of differnet substances the length upto which wax melted in copper and zinc rods are 9.3 cm and 5cm respectively Compare their thermal conductivities .