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Unformatted text preview: Page 2 Dr. Bandy \S~O Midterm Exam 3- '"/. , to '01'/ •••• ' ~ ~I.)) (Y iT n.- l ) p 0 ~ lo P .~ ~ '~y-;,- - - - - - - Q } t , 0' \ c. Calculate the power output of the sun for a sun-earth radius of 1.50 X lOll m. . ? ' . L - , ~ ' \ l.. r - A: IS (, 1\ r '- ~ I,~ w'T\Li ."1 \A " - ? T . I - r 'P "J.\ oq .1./ Ii\ tI VV d. Sunlight is generally an unpolarized light source. a c ate the intensity of the sunlight immediately after it passes through a polarizing~!1dow.ofyour house. ~. ..Lr ) ./ /..- '7 .-- - ) If> ~ Cd0 'w},.."L v / r ; : t. (I~ r. (;> lui..... r-G -------~. a. Sunlight .s not an electromagnetic wave. Ie On. b. Calculate the electric field amplitude. r~ Is<'o 0(--- "'- \ '"/. .c =-- i ( Jo1. (;. (See Fig. 2) (50 points) Signature itW" ~..~.~"~••'"~~. - , --- ". Directions: There are three problems witltiple parts. Show all work on the exam paper':'Do not write on the back of the paper unless approved by the TA or Dr. Bandy. Be sure to label all vectors and graphs with correct units as appropriate. The value of each problem is labeled to the right of each problem number. Show the coordinate system when useful. Use brief explanations and show all of your wor!>. proble#::~!~\L.-\ y (50 points) Use the intensity sunlight reaching the earth as 1J60 fWm 1 for all parts of this problem, a-f. :\ _L--PhYSiCS 2114 Spring 2008 _.1 e. The light imm~diatel .after passing through the window is now horizontally polarized. Your eyeglass lens act second polarizing filter whose axis is 30" from the vertical. Calculate the irtensity ofjh ightjust be ore entering y~ eye. Sketcheye....
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This note was uploaded on 01/10/2012 for the course PHYS 2114 taught by Professor Bandy during the Spring '08 term at Oklahoma State.
- Spring '08