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First, we will examine the wavelike properties of light. Visible light is one type of electromagnetic radiation, which is a form of energy that exhibits wavelike behavior as it moves through space. Other types of electromagnetic radiation include gamma rays, x-rays, ultraviolet light, infrared light, microwaves, and radio waves.
- 1.2: The Wave Theory of Light
Waves are characterized by several interrelated properties:...
- 1.2: The Wave Theory of Light
- Waves of Light
- Colours of Light
- To Summarise
These different colours of light have different wavelengths and frequencies. Red light has the longest wavelength, and the lowest frequency of the visible spectrum. Violet has the shortest wavelength, and the highest frequency of the visible spectrum.
Mixing coloured materials, such as paint, is an example of subtractive colour mixing. Red paint appears red to us because when white light strikes it, the red pigments reflect the red wavelengths of light and absorball of the wavelengths. This reflected light is what is seen by our eyes. The same is true for all of the other colours. So what about ...
Light travels very fast - at the speed of light in fact!Light travels as waves.Light travels in straight lines.Waves are characterized by several interrelated properties: wavelength (λ), the distance between successive waves; frequency (ν), the number of waves that pass a fixed point per unit time; speed (v), the rate at which the wave propagates through space; and amplitude, the magnitude of the oscillation about the mean position.
Light acts as a wave and can be described by a wavelength λ and a frequency ν. One property of waves is that their speed is equal to their wavelength times their frequency. That means we have: For light, however, speed is actually a universal constant when light is travelling through a vacuum (or, to a very good approximation, air).
There are three measurable properties of wave motion: amplitude, wavelength, and frequency. A definitive experiment was Young’s double slit experiment, which demonstrated that light shined at two slits in a screen show an interference pattern characteristic of waves of light, rather than particles.
Light acts as a wave and can be described by a wavelength λ and a frequency ν. One property of waves is that their speed is equal to their wavelength times their frequency. That means we have. speed = λν. For light, however, speed is actually a universal constant when light is traveling through a vacuum (or, to a very good approximation, air).
Nov 14, 2024 · Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10 metres to radio waves measured in metres.
