A 3-inch, f/6 reflector has a focal length of:(please help i'll mark as brainliest)
2 inches
3 inches
6 inches
18 inches
Answers
Answered by
14
Your answer is:-
3 inch = f/6
3 inch*6 = f
18 inch = f
Thus answer is 18 inches.
3 inch = f/6
3 inch*6 = f
18 inch = f
Thus answer is 18 inches.
hey20:
Hope it helps you
Answered by
3
Answer:
I think the correct answer is D-18
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