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Question

What causes chromatic aberration?
  1. Variation of focal length of lens with colour
  2. Marginal rays
  3. Central rays
  4. Difference in radii of curvature of its surfaces

A
Central rays
B
Variation of focal length of lens with colour
C
Marginal rays
D
Difference in radii of curvature of its surfaces
Solution
Verified by Toppr

Chromatic aberration occurs when a lens is either unable to bring all wavelengths of color to the same focal plane and/or wavelengths of color are focused at different positions in the focal plane.

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