Sound : an elementary text-book for schools and colleges (1913)
Capstick, John Walton, 1858- · leaf 42
axesdepends on the relation between the phases of the constituents.In the particular cases in which the phases are either thesame, or differ by half a period, the ellipse degenerates into astraight line. If AA and BB represent the directions and amplitudes ofvibration of the two constituents, the… … Fig. 14 vibration, it is passing upwards through 0 under the influenceof the other. In No. 2 the difference in phase is between zeroand a quarter period. No. 3 shews the case where the differ-ence of phase is a quarter period. The ellipse is thensymmetrical about the lines of vibration of both…
Sound
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