Heat Transfer Questions

Q.  Depending on the radiating properties, a body will be black when_________________?

a. p = 0, x = 0 and a = 1
b. p= l,T = 0anda = 0
c. p = 0, x = 1 and a = 0
d. x = 0, a + p = 0
e. a = 0,x + p= 1.


ANSWER: See Answer
 
where a = absorptivity, p == reflectivity, X = transmissivity
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