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Spherical aberration in a lens...

Spherical aberration in a lens

A

is minimum when most of the deviation is at the first surface

B

is minimum when most of the deviation is at the second surface

C

is minimun when the total deviation is equally distributed over the two surface

D

does not depend on the above consideration

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • Spherical aberration in a thin lens can be reduced by

    A
    using a monochromatic light
    B
    usinig a boublet combination
    C
    using a circular annular mark over the lens
    D
    increasing the size of the lens

  • Spherical aberration in a thin lens can be reduced by

    A
    usign a monochromatic light
    B
    using a doublet combination
    C
    using circular annular make overy the lens
    D
    increasing the size of the lens

  • Spherical aberration in a thin lens can be reduced by

    A
    using a monochromatic light
    B
    using a doublet combination
    C
    using a circular annular mark over the lens
    D
    increasing the size of the lens

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    The spherical aberration can be minimised by

    Assertion : Spherical aberration occur in lenses of larger aperture. Reason : The two rays, paraxial and marginal rays focus at different points.

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    A : Lenses of large aperture suffer from spherical aberration. R : The curvature of the lens at central and peripheral regions is different.

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