Heat and Thermal ExpansionHard
Question
A rod of length L with sides fully insulated is of a material whose thermal conductivity varies with temperature as K = 
, where α is constant. The ends of the rod are kept at temperature T1 and T2. The temperature T at x, where is the distance from the end whose temperature is T1 is : -
, where α is constant. The ends of the rod are kept at temperature T1 and T2. The temperature T at x, where is the distance from the end whose temperature is T1 is : -Options
A.T1 
B.
C.
D.T1 + 
x
xSolution
KA
⇒
....(i) & - 
....(ii)
⇒ l n
L and l n 
x
⇒ T = T1
⇒
....(i) & - ....(ii)⇒ l n
L and l n x⇒ T = T1
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