MCQOPTIONS
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MCQOPTIONS
| 1. |
Two rods having thermal conductivities in the ratio of 5 : 3 having equal lengths and equal cross-sectional area are joined in series. If the temperature of the free end of the first rod is \[{{100}^{o}}C\] and free end of the second rod is \[{{20}^{o}}C\]. Then temperature of the junction is |
| A. | \[~{{70}^{o}}C\] |
| B. | \[~{{60}^{o}}C\] |
| C. | \[{{50}^{o}}C\] |
| D. | \[{{90}^{o}}C\] |
| Answer» B. \[~{{60}^{o}}C\] | |