Which optical instrument utilizes two converging lenses of short focal lengths to magnify extremely small objects situated close to the objective lens?

💡 Solution & Explanation

A compound microscope employs an objective lens with a very short focal length to form a real, magnified intermediate image, which is further enlarged by an eyepiece acting as a simple magnifier. Astronomical telescopes use an objective lens of large focal length and aperture to observe distant celestial bodies. Terrestrial telescopes incorporate erecting lenses or prisms to deliver upright images of terrestrial targets. Galilean telescopes feature a diverging eyepiece lens to produce erect virtual views.