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Mechanical Engineering : Heat Transfer, Refrigeration and Air Conditioning - Quiz(MCQ)
When α is absorptivity, ρ is reflectivity and τ is transmittivity, then for a diathermanous body,
A)
α = 0, ρ = 1 and τ = 0
B)
α = 1, ρ = 0 and τ = 0
C)
α + ρ = 1 and τ = 0
D)
α = 0, ρ = 0 and τ = 1

Correct Answer : Option (C) :   α + ρ = 1 and Ï„ = 0

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