Spherical aberration is a phenomenon that occurs when a spherical surface such as a mirror or lens fails to converge all rays at a single point, the focal point f.
Chromatic aberration: A phenomenon where a lens cannot focus all colors of the visible spectrum to a single point due to the difference in refraction.
When the image of a distant object is brought into focus in front of a person's retina, the defect is called
A. chromatic aberration.
D. spherical aberration.
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