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

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

Right Answer is:

α = 0, ρ = 0 and τ = 1

SOLUTION

A body that allows heat radiation to pass through it is called a Diathermanous Body(diathermic or diathermal bodies).

A body’s behavior with regard to thermal radiation is characterized by its transmission τ, absorption α, and reflection ρ.

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

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