Describe the reduction in the spherical aberration for a plano-convex lens for the special case of...

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Physics

Describe the reduction in the spherical aberration for aplano-convex lens for the special case of collimated light(parallel light) focused down to a focal point.

Which orientation of the lens gives the least sphericalaberration and why?

Show ray diagrams

Describe how and axial-GRIN lens can further reduce thespherical aberration. Again show a qualitative ray diagram.

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Two surfaces of plano convex lens functiontogether as convergent lens by focusing parallel light rayscollimated to focal point Hence vanishing the reason behindspherical aberration ie different focus points    See Answer
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