Question:medium

A body is said to be opaque to the radiation if $(a,r,t)$ are coefficient of absorption, reflection and transmission respectively.

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Physics Tip: Opaque body: no transmission, transparent body: high transmission.
Updated On: Apr 23, 2026
  • $t=0$ and $a+r=1$
  • $a=r=t$
  • $t\neq0$
  • $a=0,\ r=1,\ t=1$
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The Correct Option is A

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