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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > If between wavelength lemda and lemda + dlemda, e lemda, and a lemda are the emissive and absorptive powers of a body and Elemda is the emissive power of a perfectly black body,

If between wavelength lemda and lemda + dlemda, e lemda, and a lemda are the emissive and absorptive powers of a body and Elemda is the emissive power of a perfectly black body,

and a lemda are the emissive and absorptive powers of a body and Elemda is the emissive power of a perfectly black body e lemda If between wavelength lemda and lemda + dlemda