What is the relation between absorptivity (α), reflectivity (ρ) and transmissivity (τ) for gray body?
A. ρ + α + τ =1
B. α + τ =1
C. ρ + τ =1
D. ρ + α =1
Answer:D
What is the relation between absorptivity (α), reflectivity (ρ) and transmissivity (τ) for gray body?
A. ρ + α + τ =1 B. α + τ =1 C. ρ + τ =1 D. ρ + α =1