In the figure shown, the focal length of the two thin convex lenses is the same \( =\mathrm{f} \...

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In the figure shown, the focal length of the two thin convex lenses is the same \( =\mathrm{f} \). They are separated by a horizontal distance \( 3 \mathrm{f} \) and their optical axes are displaced by a vertical separation 'd' \( (\mathrm{d}\mathrm{f}) \), as shown. Taking the origin of coordinates \( \mathrm{O} \) at the centre of the first lens, find the \( \mathrm{x} \) and \( \mathrm{y} \) coordinates of the point where a parallel beam of rays coming from the left finally get focussed?
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