452b - —.¢.— The answer is(5 Light reflected at an...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: —.¢.— The answer is (5:) Light reflected at an angle between ii” and 9d” will at least be partially polarized because the electric field vibrations parallel to the surface are more strongly reflected. Brewster’s ongle, BE, corresponds to the angle between the reflected and refracted beams at which all the reflected light is polarized. In our benchtop refractometer, the horizontally polarized light reflecting from the sample must pass through a polarizing film. With the transmission axis oriented vertically, the film will act to filter all but the vertical components of the electric field vibrations of the radiation incident upon it. In other words, the polarizer will act to filter out horizontally polarized light. Therefore, transmitted light will be minimal when the laser is incident on the sample at Brewster’s angle. 1|lll'hen the initial medium is empty space or the air, which has an i ndeit of refraction very nearly 1, the tangent of Brewster's angle is simply the indent of refraction of the reflecting medium. tan 6B: :1 The tangent of so” is eas to recall if you remember the ratio of sides of the so-ao- 90 right triangle: 1, d3, 2 [4'3— - LT} {tangent = opposite over adjacent} REMEMBER THE RATIO OF SIDES OF THE RIGHT TRIANGLES, ID-IEI-D-‘S‘D i1,-.I'r3_, 1} AND 45415-9D :1, © 1. m. WHICH ARE UFTEH I'IIE'I!r 1II'ALUEE'r IF ‘I'flLI HA'II'E TIE} PULLTRIGflNflMETE'i" flUT OF THE BLUE on a coMPaEHEHSIvE Exam. c zoos .J Ins-HEEL ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern