Answer:
A telescope with a 60 mm objective lens collects approximately 100 times much light than 6 mm pupil of human eye.
Step-by-step explanation:
The ability of a telescope to collect a lot more light than the human eye, is known as light gathering power.
To compare light-gathering powers of two telescopes or telescope and human eye, you divide the area of one telescope by the area of the other telescope.
Since the telescope is circular, we apply area of a circle.
(π*D²)/4
Telescope : (π*60²)/4 = 2827.8
Human eye (6 mm pupil): (π*6²)/4 =28.278
Gathering power = 2827.8/28.278 = 99.97, approximately 100 times
Therefore, A telescope with a 60 mm objective lens collects approximately 100 times much light than 6 mm pupil of human eye.