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Unformatted text preview: 62. (a) Eq. 373 and Eq. 3712 imply smaller angles for diﬀraction for smaller wavelengths. This suggests
that diﬀraction eﬀects in general would decrease.
(b) Using Eq. 373 with m = 1 and solving for 2θ (the angular width of the central diﬀraction maximum), we ﬁnd
λ
0.50 m
= 2 sin−1
= 11◦ .
2θ = 2 sin−1
a
5.0 m
(c) A similar calculation yields 0.23◦ for λ = 0.010 m. ...
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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, Diffraction

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