Depending on the radiating properties, a body will be opaque when (whe – McqOptions

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1.	Depending on the radiating properties, a body will be opaque when (where a = absorptivity, p = reflectivity, X = transmissivity.)
A.	p = 0, x = 0 and a = 1
B.	p=l,x = 0anda = 0
C.	p = 0, x = 1 and a = 0
D.	x – 0, a + p = 1
E.	a=0,x + p= 1.
Answer» E. a=0,x + p= 1.

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