The speed of light is a fundamental constant in physics denoted by "c." It represents how fast light travels in a vacuum, which is approximately 299,792 kilometers per second or about 186,282 miles per second.
Think of the speed limit on a highway. Just as there's a maximum legal speed for cars on roads, there's also an ultimate cosmic speed limit - the speed of light. Nothing can travel faster than this limit!
Electromagnetic spectrum: This term refers to the range of all possible frequencies and wavelengths for electromagnetic waves, including visible light.
Photon: A photon is a particle-like unit or quantum packet that carries electromagnetic radiation such as light.
Refraction: Refraction occurs when light bends as it passes from one medium to another due to changes in its speed.
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