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Question
The resolving power of a telescope depends upon the ______.
Options
length of the telescope
focal length of an objective
diameter of an objective
focal length of an eyepiece
Solution
The resolving power of a telescope depends upon the diameter of an objective.
Explanation:
R.P of telescope = `1/(d theta)=a/(1.22lambda)`
Thus, it is clear that a telescope with a large diameter of the objective has higher resolving power. Thus, the resolving power of a telescope depends on the diameter of an objective.
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