Two rods one is semi circular of thermal conductivity `K_(1)` and otheir is straight of thermal conductivity `K_(2)` and of same cross sectional area are joined as shown in the The points `A` and `B` are maintained at same temperature difference. If rate of flow of heat is same in two rods then `K_(1)//K_(2)` is
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Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The point A and B are maintained at different temperature. Find the ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight rod in a given time.

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The point A and B are maintained at different temperature. Find the ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight rod in a given time.

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The points A and B are maintained at different temperature. The ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight red in a given time is

The end of two rods of different materials with their thermal conductivities, area of cross-section and lengths all in the ratio 1:2 are maintained at the same temperature difference. If the rate of flow of heat in the first rod is 4 cal//s . Then, in the second rod rate of heat flow in cal//s will be

The end of two rods of different materials with their thermal conductivities, area of cross-section and lengths all in the ratio 1:2 are maintained at the same temperature difference. If the rate of flow of heat in the first rod is 4 cal//s . Then, in the second rod rate of heat flow in cal//s will be

The ends of two rods of different materials with their thermal conductivities, radii of cross sections and lengths all in the ratio 1 : 2 are maintained at the same temperature difference, if the rate of flow of heat in the larger rod is 4 cal/ sec, the rate of flow of heat in the shorter rod will be

Two cylindrical rods of lengths l_(1) and l_(2) , radii r_(1) and r_(2) have thermal conductivities k_(1) and k_(2) respectively. The ends of the rods are maintained at the same temperature difference. If l_(1) =2l_(2) and r_(1) =r_(2)//2 , the rates of heat flow in them will be the same if k_(1)//k_(2) is: