Q. Depending on the radiating properties, body will be transparent when
A. p = 0, x = 0 and a = 1
B. p=l,x = 0,anda = 0
C. p = 0, T= l,anda = 0
D. X = 0, a + p = 1
Answer: p = 0, T= l,anda = 0
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