Can a terrestrial telescope be used far observing astronomical objects ?
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Yes, the final image will be erect w.r.t. the object. It may be less bright as compared to the image in the astronomical telescope, because of absorption of some light by erecting lens.
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What is the essential difference between a terrestrial telescope and an astronomical telescope ?
Astronomical Telescope
An astronomical telescope has large apeture to
The eye-piece of an astronomical telescope has focal length of 10 cm. The telescope is focused for normal vision of distant objects when the tube length is 1.0 m. Find the focal length of the objective and the magnifying power of the telescope.