Spherical aberration in a lens:

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Question

(C) Spherical aberration is an optical effect observed in lenses with spherical surfaces,where light rays striking the lens at different distances fro

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Is minimum when the total deviation is equally distributed over the two surfaces

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(C) Spherical aberration is an optical effect observed in lenses with spherical surfaces,where light rays striking the lens at different distances from the optical axis are focused at different points. This occurs because the refractive power of a spherical surface varies with the distance from the axis. To minimize spherical aberration in a single lens,the lens should be shaped such that the total deviation of the light ray is distributed equally between the two surfaces. This condition is often referred to as the condition of minimum deviation for a lens.

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