MHT CET 2024 Physics question
Two bodies 'X' and 'Y' at temperatures ' ' K and ' ' K respectively have the same dimensions. If their emissive powers are same, the relation between their temperatures is
Answer: (A)
Solution
By the Stefan-Boltzmann law the power emitted per unit area is . The bodies have the same dimensions, hence the same surface area, and their emissive powers are equal, so and . The temperature relation depends
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