Question

Unpolarized light of intensity 600 W/m' is incident on two ideal polarizing sheets that are placed with their transmission axes perpendicular to each other. An additional polarizing sheet is then placed between the two, with its transmission axis oriented at 30° to that of the first. 1) What is the intensity of the light passing through the stack of polarizing sheets? (Express your answer to two significant figures.) W/m2 Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) What orientation of the middle sheet enables the three-sheet combination to transmit the greatest amount of light? Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.

Answer 1

Answer:

Let angle of transmission axis of Id polarises with 'I' be o If Let intensity of light passing Ist polarisis = I' Final intensity can be given as (From malu's law) If = f I cos cos (90-0) 2 (6) For I' come sono I' (20080 Smo)? If = 1 Il sino = 1600 sin 2(30) w/m2 = +(12-5)W/m2 = 56-25 w/m2 If to be maximum, 2200 dit = 0 - I'd siro) = 0 7 2 Sinzo 320.20 → 0-0 o 0:45° when o=0, Ifout le when 0= 45, If = I will be maxerium so, 0 - 450 LE 09

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