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Question

Astigmatism is a type of

A
Monochromatic aberration
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B
Chromatic aberration
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C
can happen in both monochromatic and chromatic aberration
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D
None of these
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Solution

The correct option is A Monochromatic aberration
Astigmatism is a type of manochromatic aberration.
Monochromatic aberration is due to defect in geometry of the lens and astigmatism is caused due to imperfection in the curvature of the eye.

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