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Gandharv
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a) 40 b) 270
Using Beer-Lambert's law we can calculate the intensity of the light after passing through the silicon layer: II0=e−α(1000nm)dSi For dSi=100μm, we have II0=0.37, so 63% of the light is absorbed in the silicon layer. For dSi=180μm, we have II0=0.17, so