In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of the objective lens. The eyepiece forms a real image of this line.
![Draw a ray diagram of astronomical telescope and derive the formula of its magnifying power when final image is formed at the least distance of distinct vision - ypy0tyy Draw a ray diagram of astronomical telescope and derive the formula of its magnifying power when final image is formed at the least distance of distinct vision - ypy0tyy](https://images.topperlearning.com/topper/tinymce/imagemanager/files/81351499436a76b56000e9434a92e73c5d9e15de80f755.48774501atel1.png)
Draw a ray diagram of astronomical telescope and derive the formula of its magnifying power when final image is formed at the least distance of distinct vision - ypy0tyy
![The magnifying power of the astronomical telescope for normal adjustment is 50. The focal length of the eyepiece is 2 cm. The required length of the telescope for normal adjustment is:A. 100 The magnifying power of the astronomical telescope for normal adjustment is 50. The focal length of the eyepiece is 2 cm. The required length of the telescope for normal adjustment is:A. 100](https://www.vedantu.com/question-sets/31e87bad-14d1-4665-889f-7ac797d21b3e1299281029234360673.png)