1. a word or phrase supposed to have magic power; incantation. 2. a state or period of enchantment: living under a spell. 3. any dominating or irresistible influence; fascination: the spell of fine music.
IF a wave moving at a constant speed were to have it's wavelength doubled (Wavelength x 2), then the frequency of the wave would be half of what it originally was (Frequency / â¦ 2). 6 people found this useful. Al Cohen.
If you triple the frequency of a vibrating object, its period will decrease by a factor of 3. î î î. If a wave vibrates up and down twice each second and travels a distance of 20 m each second, its frequency is 2 Hz, and its wave speed is 20 m/s.