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it depends on the wavelength
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The frequency of any electromagnetic signal ... in fact the frequency of any wave ... is
(speed of the wave)/(wavelength) .
For light, that's 300,000,000/(wavelength in meters) , and the answer is in Hertz.
The lowest frequency of light that your eye can detect is around 7.5 x 1014 Hz.
That's 750,000,000,000,000 Hz ... 750,000 Gigahertz ! (for 400 nm wavelength)
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoAs with any wave, the frequency of light is how times per second the waves goes from maximum (in the case of light, its electric field) to maximum.
Light, being an electromagnetic wave, has an electric field that become stronger, then weaker, then stronger again. The number of times this occurs in one second is the frequency of that wave.
Wiki User
∙ 14y agoI got it myself:-
The frequency of light is extremely high, raging from any fraction of a wave to seven hundred million million waves per second.
Wiki User
∙ 9y agoWhat is meant by the frequency of light is the width of its signal as it travels through space. It determines what color the light will be seen as.
Wiki User
∙ 12y agoFrom about 400 THz to 790 THz. (THz is terahertz.)
Wiki User
∙ 13y agoPhotons come in many different frequencys infact it is the frequency that determines where they are on the electromagnetic spectrum
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What does frequency control in light?
Frequency controls the color of the light.
Which has a lower frequency yellow light or blue light?
Yellow light has the lower frequency.
When the frequency of light matches the natural frequency of molecules in a material light is?
Light is absorbed by the molecule.
What is the light frequency?
The frequency of a wave of light is given by speed of light/wavelength, or by energy/Planck's constant.If you know the frequency or the energy associated with the light, it is easily calculated.
What determine the color of a light wave?
Its wavelength (or frequency).
What is an example of frequency?
Frequency can be found in sound, light, and line current. An example of frequency is, the frequency wave of light will determine what color the light is.
What does frequency control in light?
Frequency controls the color of the light.
Which has a lower frequency yellow light or blue light?
Yellow light has the lower frequency.
When the frequency of light matches the natural frequency of molecules in a material light is?
Light is absorbed by the molecule.
What is the light frequency?
The frequency of a wave of light is given by speed of light/wavelength, or by energy/Planck's constant.If you know the frequency or the energy associated with the light, it is easily calculated.
What determine the color of a light wave?
Its wavelength (or frequency).
What is the formula for converting frequency of light into wavelength?
wavelength = c/frequency of light where c is the speed of light.
How do the frequencies of blue light or red light compare?
The frequency of blue light is roughly double the frequency of red light.
Does red light have a higher frequency than green light?
No, red light is lower frequency than green light.
How are the wavelengths and frequency of electromagnetic radiation related?
For any wave:wavelength x frequency = speedSpeed of light, in this case.For any wave:wavelength x frequency = speedSpeed of light, in this case.For any wave:wavelength x frequency = speedSpeed of light, in this case.For any wave:wavelength x frequency = speedSpeed of light, in this case.
What is red light's frequency?
The frequency of red light is 4×1014 Hz. (Wikipedia)
The color of the light is determined by its?
Wavelength, or alternatively its frequency.
