If E is emissive power and 'a' is the coefficient of absorption of a bbody at any temperature, E_(b) is the emissive power of a perfectly black body at that temperature, then according to Kirchhoff's law

If E is emissive power and 'a' is the coefficient of absorption of a b

1.	If E is emissive power and 'a' is the coefficient of absorption of a bbody at any temperature, E_(b) is the emissive power of a perfectly black body at that temperature, then according to Kirchhoff's law
Answer» `E=E_(B)//a` `E//a=E_(b)` `E.E_(b)=a` `E.E_(b)=1//a` ANSWER :B

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If E is emissive power and 'a' is the coefficient of absorption of a bbody at any temperature, E_(b) is the emissive power of a perfectly black body at that temperature, then according to Kirchhoff's law

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