If the Intensity of the X-Ray Beam Is Inversely Proportional

question 6

Multiple Choice

If the intensity of the x-ray beam is inversely proportional to the square of the distance from the source,how does the intensity of the x-ray beam change when the distance from the source of radiation and a measurement point is tripled?

• A)It increases by a factor of 3 at the new distance.
• B)It increases by a factor of 9 at the new distance.
• C)It decreases by a factor of 9 at the new distance.
• D)It decreases by a factor of 3 at the new distance.

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