What percentage of initialintensity is transmitted by system

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In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of ?1 = ?2 = ?3 = 51° with the direction of the y axis. What percentage of the initial intensity is transmitted by the system? (Hint: Be careful with the angles.) Please show steps, I've tried this at least five times to no avail. Thank You!!

Reference no: EM13297465

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