What is normal adjustment?

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

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

An astronomical telescope,when in normal adjustment has magnifying power 5.If the distance between two lenses is 24 cm,find the focal length of both the lenses.

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)?

An astronomical telescope uses two lenses of power 10 D and 1 D.What is its magnifying power in normal adustment?

Draw path of rays for astronomical telescope in normal adjustment.

Explain the construction and working of an astronomical telescope. find an expression for its magnifying power in normal adjustment.

The magnifying power of an astronomical telescope in the normal adjustment position is 20.If the length of the telescope is 105 cm in this adujustment ,find the focal lengths of the two lenses.