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.
The time it takes one wavelength (distance between two wave peaks) to pass a given position is called the frequency. Thus, waves with long wavelengths have low frequencies because it takes a long time for the wave to cross a given point. Waves that have short wavelengths have high frequencies.