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प्रश्न
A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since ______.
विकल्प
a large aperture contributes to the quality and visibility of the images.
a large area of the objective ensures better light gathering power.
a large aperture provides a better resolution.
All of the above.
MCQ
रिक्त स्थान भरें
उत्तर
all of the above.
shaalaa.com
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