For which of the two lenses L-1 and L-2 the chromatic aberration will be the radii of curvature of the surfaces of L-1 are than those of L-2-L-1L-2L-1-L-2none of the above

Question

Toppr Admin · Accepted Answer

We know that the focal length of a lens $f \propto R$ where R=radius of curvature of surfaces of lens

And, chromatic aberration $\propto f$

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)

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:L1L2L1=L2none of the above

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)

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 $L_{2}$ :
$L_{1}$
$L_{2}$
$L_{1} = L_{2}$
none of the above