Why your world isn't just one color, but a spectrum
In short: This video breaks down the physics of how light creates the colors we see. It explains the relationship between wavelengths and frequency, and why objects appear as specific colors based on how they interact with light.
White light is actually a combination of all colors in the visible spectrum. Conversely, black is defined as the total absence of light. The specific color of an object is determined by three physical processes: absorption, reflection, and transmission. Depending on whether an object is opaque, transparent, or translucent, it will interact with these wavelengths differently.
The video also explores the mechanics of color filters. Primary color filters are designed to transmit specific wavelengths of light, while secondary color filters transmit a combination of primary colors. These concepts are essential for understanding the 2027/28 GCSE Physics curriculum.
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Sources
- Summary by Intellect · source: GCSE Physics - Visible Light & Colour - Colour Spectrum | Colour Filters (2027/28 exams)
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