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Chromatic Aberrations

What causes c...

Question

What causes chromatic aberration?

A

Marginal rays

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B

Central rays

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C

Difference in radii of curvature of its surfaces

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D

Variation of focal length of lens with colour

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Solution

The correct option is A Variation of focal length of lens with colour
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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