What is the distance between object and eye lens, when the telescope is on normal adjustment?

What is normal adjustment?

A small telescope has an objective lens of focal length 140cm and an eyepiece of focal length 5.0cm. 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)?

What is the magnifying power of an astronomical telescope in normal adjustment? What is its length?

Draw path of rays for astronomical telescope in normal adjustment.

A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. (A) what is the separation between the objective lens and the eyepiece? (B) If this telescope is used to view a 100 m tall tower 3 km away, what is the height of the image of the tower formed by the objective lens?

What is minimum distance between an object and the real image formed by a convex lens?

The magnifying power an astronomical telescope in the normal adjustment position is 100. The distance between the objective and the eyepiece is 101 cm. calculate the focal length of the objective and the eyepiece.

What is the range of vision for normal eye?