Unformatted text preview: 15. Interference maxima occur at angles Î¸ such that d sin Î¸ = mÎ», where m is an integer.
Since d = 2.0 m and Î» = 0.50 m, this means that sin Î¸ = 0.25m. We want all values of m
(positive and negative) for which 0.25m â‰¤ 1. These are â€“4, â€“3, â€“2, â€“1, 0, +1, +2, +3, and
+4. For each of these except â€“4 and +4, there are two different values for Î¸. A single
value of Î¸ (â€“90Â°) is associated with m = â€“4 and a single value (+90Â°) is associated with m
= +4. There are sixteen different angles in all and, therefore, sixteen maxima. ...
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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