When α is absorptivity, ρ is reflectivity and τ is transmissivity, then for a diathermanous body,

A) α = 1, ρ = 0 and τ = 0 B) α = 0, ρ = 1 and τ = 0 C) α = 0, ρ = 0 and τ = 1 D) α + ρ = 1 and τ = 0

Answer & Solution

Correct Answer: Option C

Diathermanous body is a body which transmits all the incident radiation without absorbing or reflecting.
(A body with transmitivity 1, reflectivity 0 and absorptivity 0) Air, up to certain extent can be considered as the diathermanous body because, it transmits all the radiation without hearing itself.

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2 Comments

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Swagat Nayak 7 years ago

This answer is wrong..
Right answer is C

Syam Nutalapati 7 years ago

Diathermanous body is a body which transmits all the incident radiation without absorbing or reflecting. (A body with transmitivity 1, reflectivity 0 and absorptivity 0)

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When is absorptivity is reflectivity and is transmissivity then for a...

When α is absorptivity, ρ is reflectivity and τ is transmissivity, then for a diathermanous body,

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