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3 lut 2024 · What is light and sound physics? Light and sound – reflection and refraction Light and sound both travel as waves. Light can travel through a vacuum whereas sound must travel through a solid, liquid or gas.
21 sie 2024 · What is light in physics? What is the speed of light? What is a rainbow? Why is light important for life on Earth? What is colour's relation to light? light, electromagnetic radiation that can be detected by the human eye.
13 wrz 2024 · Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Learn more about the properties and types of sound in this article.
23 gru 2023 · Light is a form of electromagnetic wave, whereas sound is a pressure density wave. Light does not require any medium to travel but sound does require a medium to travel. Light energy is quantized in packets of energy called photons, but sound energy is a continuous stream of energy on the scale.
Light is a transverse, electromagnetic wave that can be seen by a typical human. Wavelengths in the range of 400–700 nm are normally thought of as light.
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).
