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  1. Light basics. Light is a form of energy produced by a light source. Light is made of photons that travel very fast. Photons of light behave like both waves and particles.

  2. Light is a form of energy. It can come from many sources, for example: the Sun; light bulbs; lightning; candles; glow sticks. Some animals, such as fireflies and glow-worms, are also...

  3. Jan 3, 2020 · Light is an energy which main source is sun. The light source be a point or an area. The Travelling medium of light may be the air or any transparent substance.

  4. Light energy is a kind of kinetic energy capable of allowing various forms of lights visible to the human eyes. Light is known as a type of electromagnetic radiation produced by hot objects such as lasers, bulbs and sunlight.

  5. Using the energy of light, plants combine a gas in the air called carbon dioxide with water in the soil. Through this process, called photosynthesis, plants make their own food. People and other animals then use plants for food. As plants make food, they also give off a gas called oxygen.

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  7. May 12, 2023 · A medium is defined as the substance that transfers the energy, or light from one substance to another substance or from one place to another, or from one surface to another. The medium acts as a carrier here. The medium can transfer any form of energy, sound wave, light, and heat.

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