A beam of initially unpolarized light of intensity 227 W/m^2 passes through a series of polarizing filters, each one's axis aligned at a 11.1-degree angle with respect to the previous filter s axis. The beam of light emerging from the final filter in the series has an intensity of 64.4 W/m^2. How many polarizing filters did the beam pass through? 24 16 8 32

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