A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm pupil?

A telescope with a 60 mm objective lens collects  approximately 100 times much light than 6 mm pupil of human eye.

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.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank