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Unformatted text preview: phase dierence is 1 2 = (2 / air )( n 1 n 2 ) L . The value of L that makes this 5 . 65 rad is L = ( 1 2 ) air 2 ( n 1 n 2 ) = 5 . 65(400 10 9 m) 2 (1 . 60 1 . 50) = 3 . 60 10 6 m . (b) 5 . 65 rad is less than 2 rad = 6 . 28 rad, the phase dierence for completely constructive interference, and greater than rad (= 3 . 14 rad), the phase dierence for completely destructive interference. The interference is, therefore, intermediate, neither completely constructive nor completely destructive. It is, however, closer to completely constructive than to completely destructive....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics

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