This preview shows page 1. Sign up to view the full content.
Unformatted text preview: truc.ve interference • A point in space is experiencing the eﬀects of two wave fronts simultaneously. • IF the wavefronts are “in phase” at that point and at that 2me, we say there is construc2ve interference. • A point in space is experiencing the eﬀects of two wave fronts simultaneously. • IF the wavefronts are “out of phase” by π at that point and at that 2me, we say there is destruc2ve interference. 1 7/13/11 Construc2ve interference • For two coherent waves, construc2ve interference occurs when the waves are “in phase.” Or • Phase diﬀerence is a mul2ple of 2π. !" = m(2# ) where m=0, ± 1, ± 2, ± 3,etc. Phase diﬀerence due to path
length diﬀerence. Destruc2ve Interference • IF the wavefronts are “out of phase” by an odd integer mul2ple of π we say there is dest...
View Full
Document
 Summer '11
 Bratton
 Diffraction

Click to edit the document details