What does the Kirchoffs identity state? - Heat Transfer
Q. What does the Kirchoff's identity state?- Published on 11 Aug 15a. the emissivity and the absorptivity of the black body are same and always less than 1
b. the emissivity and the absorptivity of the black body are same and always more than 1
c. the emissivity and the absorptivity of the black body are same and always equal to 1
d. none of the above
ANSWER: the emissivity and the absorptivity of the black body are same and always equal to 1