An x-ray exposure of 100 mR is recorded at a distance of 40 inches.To reduce the exposure to 25 mR, to what will the distance need to be changed?
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Q35: Which of the following sets of exposure
Q36: X-ray beam penetrability is primarily controlled by
A)mAs.
B)focal
Q37: Adjustments in kVp should be used to
Q38: The density maintenance formula is a
A)reciprocity law.
B)inverse
Q39: A radiographer takes an initial radiograph using
Q40: Given 5 mAs and a milliamperage of
Q41: An exposure was made using 200 mA,
Q43: An acceptable radiograph was taken using 12
Q44: An acceptable radiograph was taken using 20
Q45: An acceptable radiograph was taken using 40
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