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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
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उत्तर
all of the above
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Some Definitions Related to Lens
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
