If the focal length of the mirror is 1000-mm and the focal length of the eyepiece is 50-mm, then what is the magnification?
Question
If the focal length of the mirror is 1000-mm and the focal length of the eyepiece is 50-mm, then what is the magnification?
Solution
The magnification of a telescope is calculated by dividing the focal length of the mirror (also known as the objective) by the focal length of the eyepiece.
Given: Focal length of the mirror = 1000 mm Focal length of the eyepiece = 50 mm
So, the magnification (M) can be calculated as follows:
M = Focal length of the mirror / Focal length of the eyepiece M = 1000 mm / 50 mm M = 20
Therefore, the magnification of the telescope is 20.
Similar Questions
The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length of the lens used?
When the telescope eyepiece is changed from 20-mm to 50-mm(Select All the answers that are correct)Group of answer choicesthe magnification is decreasedthe magnification is increasedthe field of view is decreasedthe field of view is increasedthe brightness of the object is decreasedthe brightness of the object is increased
The mirror in part (c) is replaced by a convex mirror of focal length 50 cm. Calculate theposition and magnification of the image
An object is placed at a distance of 15cm from a convex mirror of focal length 30 cm. Find the magnification. (Rounded upto to two places of decimals).
Magnification (m) provided by a convex mirror can be
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.