A) \[3\times {{10}^{3}}J\]
B) \[6\times {{10}^{3}}J\]
C) \[9\times {{10}^{3}}J\]
D) \[12\times {{10}^{3}}J\]
Correct Answer: B
Solution :
Quantity of heat transmitted through the rod \[\theta =\frac{A\Delta t\,t}{t}\] \[=\frac{1\times (100-0)\times 1min}{1}\] \[=\frac{1\times 100\times 60s}{1}\] \[=6\times {{10}^{3}}\,J\]
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