Why does the objective of an optical telescope have large focal and large apperature Also explain why does a reflector give better image of a small portion of the celestial body
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Telescopes want to collect more light to show faint objects..So the objective lens or mirror is always larger.
Telescopes do 3 things
1 collect more light than your eye.
2 they resolve close objects.
3 they magnify. the functions 1 and 2 are depend upon the size of objective .
Hope that helps you!!! ☺️☺️
Telescopes do 3 things
1 collect more light than your eye.
2 they resolve close objects.
3 they magnify. the functions 1 and 2 are depend upon the size of objective .
Hope that helps you!!! ☺️☺️
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