What is normal adjustment of a telescope? In what way it is better?

What are normal modes?

A Galilean telescope is constructed by an objective of focal length 50 cm and a eyepiece of focal length 5.0 cm a. find the tube length and magnifying power when it is used to see n object at a large distancei normal adjustment b. if the telescope is to focus an object 2.0 m away from the objective what should be the tube length and angular magnification, the image again forming at infinity?

You are given two converging lenses of focal lengths 1.25 cm and 5cm to design a compaound microscope.if it is desired to have a magnification of 30, find out the separation between the object and the eyepiece. or A small telescope has an objective lens of focal length 150 cm and eyepiece of focal length 5 cm. What is the magnifying of the telescope for viewing distant objects on normal adjustment ? 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 3km away, what is the height of the image of the tower formed by the objective lens ?

What is meant by resolving power of a telescope ?

A giant telescope in an observatory has an objective of focal length 19 m and an eye-piece of focal length 1.0 cm . In normal adjustment, the telescope is used to view the moon. What is the diameter of the image of the moon formed by the objective? The diameter of the moon is 3.5 xx 10^(6)m . and the radius of the lunar orbit round the earth is 3.8 xx 10^(8) m .

What is the normal shape of diaphragm?

An astronomical telscope has an eyepiece of focal-length 5 cm. If the angular magnification in normal adjustment is 10, the distance between the objective and eyepiece in cm is

An astronomical telescope has an eyepiece of focal-length 5cm. If the angular magnification in normal adjustment is 10, when final image is at least distance of distinct vision (25cm) from eye piece, then angular magnification will be :

Light of wavelength lamda is coming from a star. What is the limit of resolution of a telescope whose objective has diameter?