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Question
At temperature T, the emissive power and absorption power of a body for certain wavelength are `"e"_lambda` and `"a"_lambda` respectively, then ____________.
Options
`"e"_lambda = "a"_lambda`
`"e"_lambda > "a"_lambda`
`"e"_lambda < "a"_lambda`
there will not be any definite relation between `"e"_lambda` and `"a"_lambda`
MCQ
Fill in the Blanks
Solution
At temperature T, the emissive power and absorption power of a body for certain wavelength are `"e"_lambda` and `"a"_lambda` respectively, then `"e"_lambda = "a"_lambda`.
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Kirchhoff’s Law of Heat Radiation and Its Theoretical Proof
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