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The focal length of the eyepiece of an astronomical telescope is longer than the focal length of its objective lens.
Which of the followings are the characteristics of the image formed by the eyepiece of an astronomical telescope?
Which of the followings are the characteristics of the image formed by the objective lens of an astronomical telescope?
The power of the eyepiece and the objective lens of an astronomical telescope are 20D and 2D respectively. Find the linear magnification of the telescope.
The following is the information about an astronomical telescope.
Focal length of the objective lens, fo = 120cm
Focal length of the eyepiece, fe = 8cm
Find the linear magnification of the telescope.
Given that the distance between the objective lens and the eyepiece of an astronomical telescope is 75cm. If the focal length of the objective lens is 70cm, what is the focal length of the eyepiece?
The objective lens and the eyepiece of an astronomical telescope in normal adjustment has a separation of 30 cm. If the power of the eyepiece is 20D, what is the power of the objective lens ?