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.
Best Answer: 1. The propagation speed of a wave is equal to its frequency times its wave length. As for any given set of conditions the propagation speed is constant, then if the frequency is doubled the wave length will be reduce by a factor of 2 (1/2 of the starting wave length).2.s for any given set of conditions the propagation speed is constant, then if the frequency is doubled the wave length will be reduce by a factor of 2 (1/2 of the starting wave length). 2.