M

Mr. Dubey • 52.30K Points
Coach 

Q. 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
Correct : Option (D)

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