Question

# For which of the two lenses L1 and L2 the chromatic aberration will be more if the radii of curvature of the surfaces of L1 are less than those of L2:

A
L1
B
L2
C
L1=L2
D
none of the above
Solution
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#### We know that the focal length of a lens f∝R where R=radius of curvature of surfaces of lensAnd, chromatic aberration ∝fHence, larger the radius more will be chromatic aberration.And, radius of curvature of surface is more for L2.Hence chromatic aberration will be more for L2Answer-(B)

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