A metal rod of length 2m has cross sectional areas 2A and A as shown in figure. The ends are maintained at temperatures 100°C and 70°C. The temperature at middle point C is
Text Solution
Verified by ExpertsThe correct answer is:
C
Let θ θ be temperature middle point C and in series rate of heat flow is same ⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
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