Relation amog (α), (ρ) & (τ) for gray body? - Heat Transfer

Q.  What is the relation between absorptivity (α), reflectivity (ρ) and transmissivity (τ) for gray body?
- Published on 12 Aug 15

a. ρ + α + τ =1
b. α + τ =1
c. ρ + τ =1
d. ρ + α =1

ANSWER: ρ + α =1

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