A copper rod of length 
and an iron rod of length 
are joined together end to end. Both are of circular cross-section with diameter 
. The free ends of the copper and iron are maintained at 
and 
respectively. The surfaces of the bars are insulated thermally. The temperature of the copper-iron junction is [Thermal conductivity of copper is 
and thermal conductivity of iron is 
]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let temperature of copper and iron junction is 
.
Then, 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A diatomic gas has an initial internal energy of 80 cal. A work of is done on the gas and the gas …
When a monatomic gas expands at constant pressure, the percentages of heat supplied that is used to…
The heat energy supplied to a diatomic gas at constant pressure is , then the work done by the gas…
The relation between volume and absolute temperature (T) of a gas in an adiabatic process is
In a thermodynamic process if ' and ' ' are the work done and change in the internal energy of a …
A gas is expanded from an initial state to a final state along a path that consists of