In: Physics
Conditions of constructive and destructive interference
Phase shift will be ----------
Path shift will be ---------
The resulting amplitude will be ---------
Provide sketch for each case.
solution:
constructive interference occurs whenever two waves comes together that they are in phase with each other.this means that oscillation at given point is in same direction.
resulting amplitude is sum of individual amplitude of each wave . if both wave have same amplitude then resulting wave have twice amplitude then individual amplitude.phase shift will be π/2 .
(2) destructive interference
destructive interference occurs when two waves comes together such that they completely cancel other out.when two wave interference destructively ,they must have same amplitude in opposite direction. When there are more than two waves interfering the situation is a little more complicated; the net result is that they all combine in some way to produce zero amplitude. in destructive interference , path difference is equal to an odd or an even number of half-wavelength.phase shift will be π ( 180 degree) .