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Solution


Q.

The two ends of a metal rod are maintained at temperatures 100°C and 110°C. The rate of heat flow in the rod is found to be 4.0J/s. If the ends are maintained at temperatures 200°C and 210°C, the rate of heat flow will be              [2015]
 
1 8.0 J/s  
2 4.0 J/s  
3 44.0 J/s  
4 16.8 J/s  

Ans.

(2)