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Video Footage: Light Waves From Torch Light

ID 168857038 © 7activestudio | Megapixl.com

Light and other electromagnetic waves An electromagnetic wave can be created by accelerating charges; moving charges back and forth will produce oscillating electric and magnetic fields, and these travel at the speed of light. The short answer is that light coming out of your torch instantly reaches the speed of light. Light can only ever travel at the speed of light — 300,000,000 metres per second in a vacuum, and a bit slower in air because it bumps into molecules.

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