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The 3182013 physics 1c winter 2013 final 3

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Unformatted text preview: speedofsound=345m/s) A. +0.431mand ­‑0.431m B. +0.216mand ­‑0.216mand+0.647mand ­‑0.647mc C. +0.431mand ­‑0.431mand+0.862mand ­‑0.862m D. +0.862mand ­‑0.862m E. nowhere 8. WhichstatementaboutEMWavesisfalse? A. ThestrengthoftheEfieldisindependentofthestrengthoftheBfield.c B. Therearetwoindependentpolarizationdirectionsforanywave. C. Anywavelengthisallowed. D. EMwavesareasolutiontoMaxwell’sequations. E. Noneoftheabove 9. Lightfromanunderwatersourcewillbetotallyinternallyreflectedifandonlyif A. Theangletothesurfaceofthewaterisgreaterthan48.8° B. Theangletothenormalisgreaterthan48.8°c C. Theangletothesurfaceofthewaterislessthan48.8° D. Theangletothenormalis...
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