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  1. webbtelescope.org › contents › articlesSpectroscopy 101 – Light and Matter - Webb

    Jul 7, 2021 · Waves. Light behaves like a wave. You are probably familiar with waves: water waves that ripple across a pond, sound waves that vibrate air and ear drums, and seismic (earthquake) waves that cause the ground to shake. These are all mechanical waves—energy that propagates through matter, causing it to move up and down, back and forth, or side ...

  2. www.bbc.co.uk › bitesize › articlesLight Waves - BBC Bitesize

    Light is a type of electromagnetic radiation that can be detected by the eye. It travels as a transverse wave. Unlike a sound waves, light waves do not need a medium to pass through, they can ...

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  4. physics.stackexchange.com › questions › 712775What does light travel through or why it is independent of a ...

    Jun 8, 2022 · When someone says light has no medium, they mean there is no physical substance composed of atoms that needs to oscillate. We still need a background medium. If there were no background EM fields, there would be no light (a rather trite and unphysical statement for any physicists reading this). Hope that clears things up

  5. www.bbc.co.uk › bitesize › topicsRay diagrams and transmission of light guide for KS3 physics ...

    Unlike sound waves, light waves can travel through a vacuum close vacuum Empty space, where there is no solid, liquid or gas present. – they do not need a substance to travel through.

  6. www.sciencing.com › light-travel-4570255How Does Light Travel? - Sciencing

    Apr 24, 2017 · The question of how light travels through space is one of the perennial mysteries of physics. In modern explanations, it is a wave phenomenon that doesn't need a medium through which to propagate. According to quantum theory, it also behaves as a collection of particles under certain circumstances. For most macroscopic purposes, though, its behavior can be described by treating it as a wave ...

  7. www.snexplores.org › article › explainerExplainer: Understanding waves and wavelengths

    Mar 5, 2020 · This field exists everywhere in the universe. It oscillates when energy disturbs it, just like the rope moves up and down as someone shakes it. Unlike a wave in water or a sound wave in air, light waves don’t need a physical substance to travel through. They can cross empty space because their medium does not involve physical matter.

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  9. phys.libretexts.org › Courses › University_of2.1: Light as a Wave - Physics LibreTexts

    May 24, 2024 · The wave equation included physical constants from both electricity and magnetism, and extracting the wave speed from this equation resulted in a number Maxwell was already familiar with – the speed of light. It is traditional to denote this speed with a lower-case 'c': c = 3.0 ×108m s (2.1.1) (2.1.1) c = 3.0 × 10 8 m s.