An astronomical telescope has the objective lens and the eyepiece of focal lengths $80\text{cm}$ and $5\text{cm}$ respectively. Find its magnifying power, if the final image is formed at a distance of $50\text{cm}$ from the eyepiece.

Q. An astronomical telescope has focal lengths $100$ & $10$cm of objective and eyepiece lens respectively when final image is formed at least distance of distinct vision,magnification power of telescope will be,

Q. A) A small telescope has an objective lens of focal length $140\text{cm}$ and an eyepiece of focal length $5.0\text{cm}$. What is the magnifying power of the telescope for viewing distant objects when the telescope is in normal adjustment (i.e. when the final image is at infinity)?

B) A small telescope has an objective lens of focal length $140\text{cm}$ and an eyepiece of focal length $5.0\text{cm}$. What is the magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision $\left(25\text{cm}\right)$?

Q. Find the length of the astronomical telescope if it is adjusted such that the final image is formed at the least distance of distinct vision. Focal length of objective lens and eyepiece are $80\text{cm}$ and $5\text{cm}$ respectively.

Q. The focal lengths of the objective and the eyepiece of an astronomical telescope are 20 cm and 5 cm respectively. If the final image is formed at a distance of 30 cm from the eyepiece, find the separation between the lenses required for distinct vision

Q. A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will be