INTRODUCTION Interference Introduction to interference, A phenomenon t occurs when tw Constructive and) destructive S2 interference Constructive Interference Destructive Interference
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Sanu. interference- It is defined as the two or more waves of lights of treguancy and amp fude but with Constant phase difference occurs on any region a process regions KnoInterference interference laser light pattern of light & dark bands By RAHUL MANDAL
Constructive Interference Destructive nterference f a crest of a wave meets a crest o another waves the Samea trouyh 4fanother ave, ther the the Same point , theh -the ampliude ampb the Sum of the Individual amplitudes the indiv ual amplitudes-this is Destructive crest ofqhave meets a crest of | -a crest of one wave meels uew eampltude is amplitudes eual to the diffeeuce itn -s Cons tructive intefereuce infersexekce phase difference Phase difference -xt is the evenmultiple of (180) is the odd multiple of 1180 0 4 difference - (A) path difference 2 2. 2 2.
Principle of Superposition The primciple of Superposition of waves states that hern two or ore are incident n the 8ame point point sl t the Vecter Sum of the propagtn waves c Propin waves ofSame tybe the resaltent am plitude e resultan ampli tudes of the individual waves Let y ya are of the displacement of two Super Pessina, wa ves ,when the resultant displatement ill be, Now, we ^et we get = R cos sin cot + R cosat sing. Saugr % and Adding enunten@w(6) By Rahul Mandal
ormaxima Wave Interference Wave X for minima- Resultant wave Z -+ Next lesson Coherant Source or visibleConstructive interference Destructive interference -Condition for Sustaired Types of hteference 4a) wave frent b) Ampltudle. BRah Mandal
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