Unpolarized light of intensity 850 W/m2 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.) Submit W/m² 2) What orientation of the middle sheet enables the three-sheet combination to transmit the greatest amount of light? Submit

Unpolarized light of intensity 850 W/m2 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.) Submit W/m² 2) What orientation of the middle sheet enables the three-sheet combination to transmit the greatest amount of light? Submit

College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

Unpolarized light of intensity 850 W/m² 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.)
Submit
W/m²
2) What orientation of the middle sheet enables the three-sheet
combination to transmit the greatest amount of light?
Submit

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Step 2: (1.) Calculate intensity of light passing through stack of polarising sheets

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Step 3: (2.) Determine the expression of intensity passing through third polariser

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Step 4: Calculate the angle through which greatest amount of light is transmitted

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