Exam1Sol - l 'hysical Oplics 5621 J . Lege r Electrical a...

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l'hysical Oplics ££5621 J. L ege r Electrical and CQmpuler Engineering Uni''er'''ity of Minne,fO /a J March 1010 Mitlterm I ( 'hu ed hook. ( '/mwl " " Ie. ... No ca/cIl/(JIorS (Ire aI/awed (/lor (Ire Ihc,!' I/,~e/II/) . rOlf a ll' ,,1/01,.<:<1 " III.! /)(Jg~ of" nll,'JI Iiol es/or ellum/mllj, No proMelll SO/IIIIUIiS ,,'IIould he "olllllll/cd "II. m llr II(II~,\' ,hel.!l. I'm , IIIIIs11llr11 in yo ur lII ,tes sheet lI'ilh 'h e eXlIIlL Pn,hlcm I. Interfcren~~ patt~m from two s ph ~ r ic al wav~ s (10 pts): A converging and diverging spherical wave are incident on a piece ofphotogrnphic film as shown b<!low The converging wa ve is heading to a poim source at Z ~ +7,;, and the d iverg ing wave is cuming from a poim source at Z - - Zo. Ca lculate the imcnsity pallcm from these two waves in the plarn.' oflhe Iilm z ~ O. You sho uld usc the paraxial approximat ion for the two spherical W~ W~ , Put the equation in the si mpl e~1 form (e.g. trig functions). film \ , 7,- 0
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r. "'~'J .,:- 2 cas LT H~ a, ::t. ,\,,,,; ":l " ~ "'" b 'J P-= rU\1.1 of Q/NII-*"'n R (~P6Si-hvt fOi e.><"p,,",Jli1j r.,,,e.
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Exam1Sol - l 'hysical Oplics 5621 J . Lege r Electrical a...

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