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17. Interference maxima occur at angles
θ
such that
d
sin
θ
=
mλ
,where
m
is an integer. Since
d
=2
.
0m
and
λ
=0
.
50 m, this means that sin
θ
=0
.
25
m
. We want all values of
m
(positive and negative) for
which

0
.
25
m
≤
1. These are
−
4,
−
3,
−
2,
−
1, 0, +1, +2, +3, and +4. For each of these except
−
4and
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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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