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Light does not carry any charge itself, so it does not attract or repel charged particles like electrons. Instead light is an oscillating electric and magnetic field. If you take an electron and put it in a static electric field (e.g. around a Van de Graaff Generator) then the electron feels a force due to the field and will move.
16 hours ago · Rather than absorbing light continuously from a wave, atoms actually receive energy in packets of light called photons, explaining odd observations such as the existence of a cutoff frequency.
May 24, 2024 · We know that light is a wave based on how it behaves – it exhibits the same properties of other waves we have examined – it interferes with itself, it follows an inverse-square law for intensity (brightness), and so on.
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] 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.
Dec 28, 2020 · In plain terms, electromagnetic waves are simply what we know as light. Unlike most waves, however, electromagnetic waves do not require a medium through which to propagate. Photons or electromagnetic radiation exhibit what is called particle-wave duality. They can act like particles or waves.
A fundamental property of photons is the amount of energy they carry, corresponding to the wavelength of the light (the distance for a wave to return to the same position in its cycle). For visible light, we call this the light’s colour. No means of detecting light can ‘see’ the entire spectrum.
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In Lesson 1, we will investigate the variety of behaviors, properties and characteristics of light that seem to support the wave model of light. On this page, we will focus on three specific behaviors - reflection, refraction and diffraction.
