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Limit of Resolution

Spherical abe...

Question

Spherical aberration in a thin lens can be reduced by:

A

using a monochromatic light

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B

using a doublet combination

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C

using a circular annular mask over the lens

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D

increasing the size of the lens

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Solution

The correct option is C using a circular annular mask over the lens
Spherical aberration is caused due to large aperture.If aperture is reduced by using a circular annnular mask over it can be reduced.

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Limit of Resolution

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