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A beam of initially unpolarized light of intensity 249 W/m^2 passes through a series of polarizing filters, each one s axis aligned at a 25.7-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 5.5 W/m^2. How many polarizing filters did the beam pass through?

		24
		16
		8
		32

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