ABSORPTIVITY_OF_A_BODY_IS_EQUAL_TO_ITS_EMISSIVITY?$ – McqOptions

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1.	ABSORPTIVITY_OF_A_BODY_IS_EQUAL_TO_ITS_EMISSIVITY?$
A.	Under thermal equilibrium conditions
B.	For a polished surface
C.	At one particular temperature
D.	At shorter wavelengths
Answer» B. For a polished surface

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