Discussion Forum : Mechanical
Question - For an opaque surface, the absorptivity (α) , transmissivity (t) and reflectivity (ρ) are related by the equation:
Options:
A .  Î± + ρ = t
B .  Î± + ρ + t = 0
C .  Î± + ρ = 1
D .  Î± + ρ = 0
Answer: Option C


-NA-


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