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If the magnification of a lens is dependent on the distance from the principal axis, the aberration that arises is called __________

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If the magnification of a lens is dependent on the distance from the principal axis, the aberration that arises is called __________

(a) Coma

(b) Astigmatism

(c) Curvature

(d) Distortion

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I want to ask this question from Optical Instruments topic in portion Optics of Engineering Physics II

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Correct answer is (d) Distortion

Easiest explanation: Distortion is the defect that arises when the images of equal parts of an object will not be of the same length. In such a case, the magnification of the lens is dependent on the distance from the principal axis.

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