More than one analyzer can be used in a setup like the one in Figure each analyzer following the previous one. Suppose that the transmission axis of the first analyzer is rotated 27° relative to the transmission axis of the polarizer, and that the transmission axis of each additional analyzer is rotated 27° relative to the transmission axis of the previous one. What is the minimum number of analyzers needed for the light reaching the photocell to have an intensity that is reduced by at least a factor of 100 relative to the intensity of the light striking the firstanalyzer?

Transcribed Image Text:

Ecos θ Unpolarized ight Polarizer Analyzer Photocell 90 Ecos θ