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The inability of a lens to form a white image of a white object is known as ________

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The inability of a lens to form a white image of a white object is known as ________

(a) Spherical Aberration

(b) Chromatic Aberration

(c) Monochromatic Aberration

(d) Coma

This question was addressed to me by my school teacher while I was bunking the class.

The origin of the question is Optical Instruments topic in chapter Optics of Engineering Physics II

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Right choice is (b) Chromatic Aberration

Easiest explanation: If a lens forms colored images of an object with white light, it is known as chromatic aberration. Because since that the refractive index of the material of the lens is different for different wavelengths of light.

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