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What is light?
What is light?
Light is the visible section of the electromagnetic spectrum.
Light is the visible section of the electromagnetic spectrum.
Electromagnetic waves, such as light, consist of two perpendicular waves oscillating in tandem. One of the waves is due to the present magnetic field, and the other wave is due to the present electric field. These waves are perpendicular to each other, in addition to being perpendicular to the direction of motion of the wave, as depicted below.
Electromagnetic waves, such as light, consist of two perpendicular waves oscillating in tandem. One of the waves is due to the present magnetic field, and the other wave is due to the present electric field. These waves are perpendicular to each other, in addition to being perpendicular to the direction of motion of the wave, as depicted below.
The electromagnetic spectrum as a whole is a continuous range of waves that differ in frequency (ν) and wavelength (λ). Along with light, other waves included in the electromagnetic spectrum are radio waves, infrared waves, x-rays, and more.
The electromagnetic spectrum as a whole is a continuous range of waves that differ in frequency (ν) and wavelength (λ). Along with light, other waves included in the electromagnetic spectrum are radio waves, infrared waves, x-rays, and more.
Visible light makes up only one millionth of 1 percent of the measured electromagnetic spectrum. The lowest frequency of visible light appears red while the highest frequency of visible light appears violet.
Visible light makes up only one millionth of 1 percent of the measured electromagnetic spectrum. The lowest frequency of visible light appears red while the highest frequency of visible light appears violet.
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