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A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

Q1

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

a

a large aperture contributes to the quality and visibility of the images.

b

a large area of the objective ensures better light gathering power.

c

a large aperture provides a better resolution.

d

all of the above.

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