MCQOPTIONS
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MCQOPTIONS
| 1. |
Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are \[{{\operatorname{K}}_{1}} and {{K}_{2}}\]. The thermal conductivity of the composite rod will be : |
| A. | \[\frac{3({{K}_{1}}+{{K}_{2}})}{2}\] |
| B. | \[{{K}_{1}}+{{K}_{2}}\] |
| C. | \[2\left( {{K}_{1}}+{{K}_{2}} \right)\] |
| D. | \[\frac{{{K}_{1}}+{{K}_{2}}}{2}\] |
| Answer» E. | |