lecture 32 - interference from slits

lecture 32 - interference from slits - Announcements3/21/11...

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Announcements 3/21/11 Prayer Two labs this week (telescope, interferometer) Two mathematical facts you should know: (They follow quickly from e ix  = cosx + i sinx) cos 2 ix ix e e x - + = sin 2 ix ix e e x i - - =
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Reading Quiz According to the book, a double-slit  diffraction pattern (viewed on a screen far  from the slits) looks like: a. A series of equal amplitude peaks, equally  spaced b. A series of equal amplitude peaks,  alternating between two spacing distances c. A series of alternating amplitude peaks,  equally spaced d. A series of alternating amplitude peaks,  alternating between two spacing distances
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Interference. ..  Interference. ..  A single source
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Interference. ..  Interference. ..  Two sources
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Double slit experiment Exactly the same as  the two speaker  demo Goal: what’s the  shape of that curve?  How can we predict  where the maxima &  minima will be?
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lecture 32 - interference from slits - Announcements3/21/11...

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