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Divya_4978
#1 Posted : Tuesday, June 09, 2020 2:34:09 AM
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Hello,
I was working on the Physics Section Bank, however I do not understand passage 2 question 11 where it asks to find the focal length. The solutions has given a formula that I have not seen before as I just know that f = r/2 or c/2. Would someone please explain the formula that is used to find the focal length in question 11?
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INSTR_Amira_87
#2 Posted : Wednesday, June 10, 2020 3:23:26 PM
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Hi! Please email the instructor with a screenshot of the problem you are referring with your question and either I or him will get back to you.
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