Question

If transmission power of a surface is 1/6 and reflective power is 1/3, then its absorptive power will be

• A. $\frac{1}{3}$
• B. $\frac{1}{2}$
• C. $\frac{1}{6}$
• D. $\frac{1}{12}$

Answer 1

Answer: (B)

$\frac{1}{2}$

Answer 2

$t = \frac{1}{6}$, $r = \frac{1}{3}$ and we know $a + r + t = 1$

∴ a = 1 – r – t $= 1 - \frac{1}{3} - \frac{1}{6} = \frac{1}{2}$.