They have both.
Its wavelength (or frequency).
by dividing the speed of light with its wavelength
The velocity of the light waves must be given before the frequency can be find.
The measure of a light's frequency is called wavelength.
There are many types of waves, but the main ones are: radio waves, microwaves, infrared waves, visible light waves, ultraviolet waves, x-rays, and gamma rays. Radio waves have the longest wavelength and lowest frequency. Gamma rays have the shortest wavelength and highest frequency.
Radar waves have a lower frequency that light waves.The frequency of a light wave is related to wavelength and speed by the equation c = »½. The color of a light wave is also determined by the frequency. The amplitude and brightness are not related to the frequency.
freq x wavelength = c (light speed)
In the spectrum of electromagnetic radiation the wave property that changes is the frequency. So for example xrays have higher frequency then blue light which has higher frequency then red light which has higher frequency then radio waves etc.
For any wave, (wavelength) times (frequency) = (speed of propagation).For electromagnetic waves, (wavelength) times (frequency) = (speed of 'light')
For light they would be gamma rays, or waves with a frequency greater than 1 * 10^20 (10000000000000000000) Hz. And really, as a general rule, the higher the frequency the shorter the wavelength. If you want to calculate the frequency or wavelength you take the speed of light (~3.00*10^8 m/s) and divide it by either the frequency or wavelength, and your answer will be the wavelength (if you used frequency) or the frequency (if you used wavelength).
Red light waves are almost double the length of blue or violet light waves. Wavelength is inversely proportional to frequency; red light has a higher frequency than blue light.
No. In order to be coherent, the light waves have to be in phase and stay in phase, and the only way for that to happen is for them to have the same wavelength and frequency.