Prism, Dispersion & Scattering
When a beam of white light is allowed to pass through convex lens parallel to principle axis, the different colors of light converge at different point on the principle axis after refraction. This is called
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Answer: (b)
- Focal length depends on , and depends on colour: .
- So different colours focus at different points on the axis: chromatic aberration.
- So the answer is (b).