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Summation of codirectional oscillations

Let us begin with the simplest case summation of two oscillations with the same frequencies  [Pg.113]

Let us analyze the result. The phase difference of the summing oscillation remains constant at any time instance it is the difference of the initial phases, i.e.. [Pg.114]

As can be seen from expression (2.3.1), the resulting amplitude depends on the phase difference of the summed oscillation, hi particular, if the phase difference A(p satisfies the condition [Pg.115]

The modulus is used here because the amplitude must be positive. [Pg.115]

It is clearly seen that oscillation will not take place at all in this case having equal amplitudes and oscillating in antiphase, they have cancelled each other out. [Pg.115]


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