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Mathematics, 21.01.2020 19:31 angellinelittle

A3-inch, f/6 reflector has a focal length of:
0 2 inches
o 3 inches
o 6 inches
o 18 inches

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Answers: 3

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A3-inch, f/6 reflector has a focal length of:
0 2 inches
o 3 inches
o 6 inches
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