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.
Give an example. As the frequency of a sound is increased, the wavelength decreases. For example, during a concert, you do not hear the high notes in a chord before you hear the low ones; the sounds of all instruments reach you at the same time. Wavelength and frequency vary inversely to produce the same wave speed for all sounds.