Question

Geometric unsharpness will be least obvious

1. At long SID
2. With small focal spots
3. At the anode end of the image

Answer 1

Geometric unsharpness is least obvious at long SID, with small focal spots, and at the anode end of the image.

Step-by-step explanation:

Geometric unsharpness is least obvious when:

1. Long SID: A longer Source-to-Image Distance (SID) reduces the unsharpness because the object appears larger and more detailed at a longer distance.
2. Small focal spots: A smaller focal spot produces a clearer and sharper image, minimizing the unsharpness.
3. Anode end of the image: The anode end of the image typically has less unsharpness because it is farther away from the source of radiation and closer to the viewer.