An astronomical telescope uses an objective lens to form a real, inverted image and an eyepiece lens (acting as a magnifying glass) to form a final virtual, magnified, and inverted image relative to the object (though erect relative to the intermediate image). The image viewed by the observer is virtual and appears magnified.
The image formed by an astronomical telescope is
Asked in UPPSC Upper Mains 2013 · Topic: Optics (Optical Instruments: microscopes, telescopes, human eye)
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