Sound : an elementary text-book for schools and colleges (1913)
Capstick, John Walton, 1858- · leaf 44
en though theratio is exactly 2:1 the difference of phase is not constant. Avibration in one direction is completed in half the time of a 43-45] ELASTICITY AND VIBRATIONS 33 vibration in the direction at right angles to it, and therefore,even though the two vibrations start in the same phase,… … Fig. 15 Fig. 15 shews five forms of Lissajous Figures for the ratioof frequencies 2:1. The parabolic form of the first and fiftharises when the phases are such that the vibrating point comesto the end of its swing in each of the two perpendiculardirections at the same moment. If the ratio is not…
Sound
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