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- Mathematics and experiments show that light is a transverse wave – the electric and magnetic field vectors point in directions that are perpendicular to the direction of motion of the light wave (and as it turns out, they also rare always perpendicular to each other). Figure 2.1.1 – Electromagnetic Wave
Firstly the interaction with electric charge and secondly the interaction with magnets. 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.
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.
Jun 24, 2022 · What is known as light is more properly called electromagnetic radiation. We know from experiments that light acts as a wave. As such, it can be described as having a frequency and a wavelength.
When light strikes a metal surface, electrons are sometimes ejected from the surface. The kinetic energy of the ejected electron is independent of the frequency of the light. Einstein (in 1905) proposed an explanation of the photoelectric effect that used the idea of quantization.
Electromagnetic radiation consists of two perpendicular waves, one electric and one magnetic, propagating at the speed of light (c). Electromagnetic radiation is radiant energy that includes radio waves, microwaves, visible light, x-rays, and gamma rays, which differ in their frequencies and wavelengths.
Nov 14, 2024 · Light - Electromagnetic, Spectrum, Wavelengths: Heinrich Hertz’s production in 1888 of what are now called radio waves, his verification that these waves travel at the same speed as visible light, and his measurements of their reflection, refraction, diffraction, and polarization properties were a convincing demonstration of the existence of ...
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Aug 14, 2023 · Describe the wave nature of light; Use appropriate equations to calculate related light-wave properties such as frequency, wavelength, and energy; Distinguish between line and continuous emission spectra; Describe the particle nature of light
