A satisfactory radiograph is made using 15 mAs at 75 kVp at a 140cm SID Assuming no other changes in the exposure factors are made, what new mAs value will produce the same optical brightness at a 180 SID Group of answer choices 25 19 9 5

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A satisfactory radiograph is made using 15 mAs at 75 kVp at a 140cm SID  Assuming no other changes in the exposure factors are made, what new mAs value will produce the same optical brightness at a 180 SID  Group of answer choices 25 19 9 5

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Question: A satisfactory radiograph is made using 15 mAs at 75 kVp at a 140cm SID. Assuming no other changes in the exposure factors are made,

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