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Byju's Answer
Standard XII
Physics
Chromatic Aberrations
For which of ...
Question
For which of the two lenses
L
1
and
L
2
the chromatic aberration will be more if
the radii of curvature of the surfaces of
L
1
are less than those of
L
2
:
A
L
1
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B
L
2
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C
L
1
=
L
2
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D
none of the above
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Solution
The correct option is
B
L
2
We know that the focal length of a lens
f
∝
R
where R=radius of curvature of surfaces of lens
And, chromatic aberration
∝
f
Hence, larger the radius more will be chromatic aberration.
And, radius of curvature of surface is more for
L
2
.
Hence chromatic aberration will be more for
L
2
Answer-(B)
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