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Light is a type of electromagnetic radiation, which is a form of energy that travels through space in waves. It is characterized by its wavelength and frequency, which determine its properties such as color and intensity.
The energy of light is related to its frequency, as higher frequency light has more energy than lower frequency light. This relationship is described by the equation E=hf, where E is energy, h is Planck's constant, and f is frequency.
The energy of light can have a variety of effects, depending on its intensity and the materials it interacts with. For example, light can heat objects, create chemical reactions, or stimulate the cells in our eyes to create visual sensations. The energy of light is also an important source of energy for living organisms, as it is used in the process of photosynthesis to convert sunlight into chemical energy that can be stored in plants.
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