Relation between reflectivity (ρ), absorptivity (α) & transmissivity (τ) - Heat Transfer

Q.  What is the relation between reflectivity (ρ), absorptivity (α) and transmissivity (τ)?
- Published on 11 Aug 15

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

ANSWER: ρ + α + τ = 1

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