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Equation
       
    Name Destructive Interference
 
    Equation Path ⁢   difference = ( m + 1 2 ) λ
 
    Definition of terms m = integer, λ = wavelength
 
    Comments

  At any point where the path difference of two waves emitted from two separate sources is equal to a whole number of wavelengths plus half a wavelength, then the waves will interfere destructively. The waves will be out of phase at that point and the amplitude will be equal to the difference in amplitudes of the two waves.

 
    References University Physics, F W Sears, M W Zemansky, 3rd edition, Addision-Wesley, 1967
       


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