A terrestrial telescope is made by introducing an erecting lens of focal length f between the objective and eye piece lenses of an astronomical telescope. This causes the length of the telescope
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![Describe the terrestrial telescope based on the following points.(i) Labeled Ray diagram.(ii) Derivation of formula for magnifying power, when the final image is formed at the least distance of distinct vision. Describe the terrestrial telescope based on the following points.(i) Labeled Ray diagram.(ii) Derivation of formula for magnifying power, when the final image is formed at the least distance of distinct vision.](https://www.vedantu.com/question-sets/0370d376-1435-4105-b439-aa224f7f6f681753171632863959293.png)
Describe the terrestrial telescope based on the following points.(i) Labeled Ray diagram.(ii) Derivation of formula for magnifying power, when the final image is formed at the least distance of distinct vision.
![Magnifying power of a terrestrial telescope of objective lens having focal length 200 cm is 40. Find the length of the telescope when the final image is formed at least distance of Magnifying power of a terrestrial telescope of objective lens having focal length 200 cm is 40. Find the length of the telescope when the final image is formed at least distance of](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1414258/original_00.png)