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.
For electromagnetic waves, the speed is constant and equal to the speed of light, c. Naturally, the specific values of wavelength and frequency can change from one wave to another. This is what distinguishes radio waves from light waves or even one color of light from another.