Physics - Geometrical Optics Question with Solution | TestHub

There are four convex lenses ${\mathrm{L}}_1,{\mathrm{L}}_2,{\mathrm{L}}_3$ and ${\mathrm{L}}_4$ of focal length $2,4,6$ and $8\mathrm{cm}$ respectively. Two of these lenses form a telescope of length $10\mathrm{cm}$ and magnifying power 4 . The objective and eye lenses are respectively