Light dispersion is the phenomenon where white light separates into its constituent colors (the spectrum) when passing through a medium. This happens because different wavelengths (colors) of light are refracted at slightly different angles. The amount of bending depends on the refractive index of the material, which varies with wavelength. Materials like prisms and water droplets can disperse light, creating beautiful effects like rainbows. Understanding dispersion helps us explain various optical phenomena and is crucial in designing optical instruments.
Match the term with its correct definition:
| Term | Definition |
|---|---|
| 1. Refraction | A. The spreading of light into its different colors. |
| 2. Dispersion | B. A measure of how much a material bends light. |
| 3. Wavelength | C. The bending of light as it passes from one medium to another. |
| 4. Spectrum | D. The distance between successive crests of a wave. |
| 5. Refractive Index | E. The range of colors seen when light is dispersed. |
When white light passes through a _______, it undergoes _______. This is because each _______ of light is bent at a slightly different _______. The amount of bending is determined by the material's _______. This separation of colors is called _______.
Why do different materials disperse light differently? Explain in terms of their atomic structure and interaction with light.
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