Intensity 4244

The light beam loses 1/12 of its intensity as it passes through the glass plate. What will be the beam's intensity after passing through a ten times stronger plate?

Correct answer:

x =  41.8904 %

Step-by-step explanation:

$$\begin{gathered} k=1-1/12=\frac{11}{12}\doteq 0.9167 \\ p=k^{10}=0.9167^{10}\doteq 0.4189 \\ x=100\cdot p=100\cdot 0.4189=41.8904\% \end{gathered}$$

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