Answer only #7 VA http://www.webassign.net/webstudent/Assignme C Study Music by

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Answer only #7

VA http://www.webassign.net/webstudent/Assignme C Study Music by Sebastian Bach File Edit View Favorites Tools Help 7. 0/1 points l Previous Answers My Note Unpolarized light with an intensity of 985 W m s incident on a polarizer with an unknown axis. The light then passes through a second polarizer with has an axis which makes an angle of 69.5 with the vertical. After the light passes through the second polarizer, its intensity has dropped to 124 W m2. What is the angle between the axes of the polarizers? -13.3 My Notes I KnightCP2 25.XP.00 8. 0/1 points l Previous Answers Unpolarized light of intensity To is incident on three polarizing filters. The axis of the first is vertical, that of the second is 69 from vertical, and that of the third is horizontal. What light intensity emerges from the third filter 0.205 x To NA X Did You Know? You can capture a screen by right clicking me or by using the capture window. To capture a secondary drag th end click capture. 11:02 PM 4/21/2013

Explanation / Answer

I=Iocos^2(theta)

124=985*cos(90-69.5)*cos^2(theta)

Theta=67.7 degrees

so angle between polarisers=47.24 degree

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