The eyepiece of a refracting telescope has $f=9\text{cm}$. In the normal setting, seperation between objective and eyepiece is $1.8\text{m}$. Find the magnification.

Q. The eyepiece of a refracting telescope has $f=9cm$. In the normal setting, separation between objective and eyepiece is 1.8m. Find the magnification.

Q. The eyepiece of a refracting telescope has f =9 cm. In the normal setting, separation between objective and eyepiece is 1.8 m. Find the magnification.

Q. An astronomical telescope and a Galilean telescope use identical objective lenses. They have the same magnification, when both are in normal adjustment. The eyepiece of the astronomical telescope has a focal length $f.$

Q. A small telescope has an objective lens of focal length 144cm andan eyepiece of focal length 6.0cm. What is the magnifying power ofthe telescope? What is the separation between the objective and the eyepiece?

Q. A small telescope has an objective lens of focal length $144\text{cm}$ and an eyepiece of focal length $6.0\text{cm}$. What is the magnifying power of the telescope? What is the separation between the objective and the eyepiece?