Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps In some situations, light can be considered to behave like a particle called a photon With the development of electric lights and power systems, electric lighting has effectively replaced firelight.
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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 −11 metres to radio waves measured in metres.
The meaning of light is something that makes vision possible How to use light in a sentence But what exactly is light Light is a type of energy that enables us to see with our eyes
Light travels from a source, like the sun or a light bulb, to our eyes, and to the surroundings That is the reason we can see objects during daytime with the sunlight, or with a light bulb in the night. Light is a transverse, electromagnetic wave that can be seen by the typical human The wave nature of light was first illustrated through experiments on diffraction and interference.
Is light a wave or a particle
And why can’t humans see the whole spectrum of light In most situations, light behaves like a wave with properties like wavelength and frequency, and is subject to diffraction and interference
