A 4-inch, f/5 telescope has a 1-inch eyepiece focal. Its magnifying power is:(please help i'll mark as brainliest)
A.4X
B.5X
C.9X
D.20X
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9
9x that's okay .......brother if u r not satisfied just see in net
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A 4-inch, f/5 telescope has a 1-inch eyepiece focal. Its magnifying power is 9x
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