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The wavelength of light is defined as “The distance between the two successive crests or troughs of the light wave”. It is denoted by the Greek letter lambda (λ). Therefore, the distance between either one crest or trough of one wave and the next wave is known as wavelength.
The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band.
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz.
c = λ ν. where λ (the Greek lambda) is the wavelength (in meters, m ) and ν (the Greek nu) is the frequency (in Hertz, Hz ). Their product is the constant c , the speed of light, which is equal to 3.00 × 10 8 m/s .
Thus the wavelength of a 100 MHz electromagnetic (radio) wave is about: 3 × 10 8 m/s divided by 10 8 Hz = 3 m. The wavelength of visible light ranges from deep red, roughly 700 nm, to violet, roughly 400 nm (for other examples, see electromagnetic spectrum).
The wavelength of the visible spectrum of light is as follows: Lights in a Spectrum. White light: White light’s wavelength is from 400 to 750 nm.
Jul 5, 2024 · wavelength, distance between corresponding points of two consecutive waves. “Corresponding points” refers to two points or particles in the same phase—i.e., points that have completed identical fractions of their periodic motion.
