The Light-Gathering Power of a Telescope Depends Directly on the

question 172

Multiple Choice

The light-gathering power of a telescope depends directly on the

• A) area of the final aperture of its eyepiece.
• B) focal length of its primary mirror or lens.
• C) ratio of the focal lengths of its primary element (mirror or lens) and its eyepiece.
• D) area of its primary mirror or lens.

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