A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm exit pupil?
A) 5 times
B) 10 times
C) 25 times
D) 100 times
E) 250 times
Answer: D
A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm exit pupil?
A) 5 times
B) 10 times
C) 25 times
D) 100 times
E) 250 times