Question:
In a terrestrial telescope the focal length of objective is
Last updated: 6/24/2023
![In a terrestrial telescope the focal length of objective is](https://media.kunduz.com/media/sug-question-candidate/20210814125312665863-1890936.jpg?h=512)
In a terrestrial telescope the focal length of objective is 90 cm of inverting lens is 5 em and of eyepiece is 6 cm If the final image is at 30 cm then the magnification will be 1 21 3 18 2 12 4 15