Thus, the phase difference at point
P
is
φ
=d
sin
θ
/λ
= 0.397 wavelengths, which means it
is between the central maximum (zero wavelength difference) and the first minimum (
1
2
wavelength difference).
Note that the above computation could have been simplified
somewhat by avoiding the explicit use of the tangent and sine functions and making use
of the smallangle approximation (tan
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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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