JEE Advanced 2012 Physics question
Three very large plates of same area are kept parallel and close to each other. They are considered as ideal black surfaces and have very high thermal conductivity. The first and third plates are maintained at temperatures 2T and 3T respectively. The temperature of the middle (i.e. second) plate under steady state condition is
Answer: (C)
Solution
In steady state the middle plate (temperature ) absorbs as much radiant energy as it emits. Per unit area it receives from the first plate and from the third, and it emits from both faces, . So T_0^4(16T^4$ +
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