Which of these statements is false?
A) Increasing the target-image receptor distance reduces penumbra.
B) Radiation intensity is directly proportional to the square of the distance from the source.
C) A long PID increases image sharpness.
D) A recessed tube increases the target-image receptor distance.
B
Explanation: A) The inverse square law states that the intensity of the radiation varies inversely from the square of the distance from its source.
B) The inverse square law states that the intensity of the radiation varies inversely from the square of the distance from its source.
C) The inverse square law states that the intensity of the radiation varies inversely from the square of the distance from its source.
D) The inverse square law states that the intensity of the radiation varies inversely from the square of the distance from its source.
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