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1. |
The temperature gradient in a rod of 0.5 m long is \[{{80}^{o}}C/m\]. If the temperature of hotter end of the rod is\[{{30}^{o}}C\], then the temperature of the cooler end is |
A. | \[{{40}^{o}}C\] |
B. | \[-{{10}^{o}}C\] |
C. | \[-4\hat{i}+6\hat{j}\] |
D. | \[{{0}^{o}}C\] |
Answer» C. \[-4\hat{i}+6\hat{j}\] | |