The term used to describe distortion that changes the apparent size of the object on the image is:

• A. Magnification
• B. Foreshortening
• C. Elongation
• D. Minification

Answer: (A)

In radiography, distortions that affect how large the object appears on the image come from the geometry of projection. The X-ray beam diverges from the focal spot, and the image size depends on how far the object is from the image receptor. When the object sits farther from the detector, the divergent rays make the projected image larger than the actual object—that's magnification. This size change is why keeping a consistent object-to-image distance and a stable source-to-image distance helps control image scale. The other terms describe changes in shape rather than overall size: foreshortening and elongation relate to how the object's orientation relative to the beam alters its appearance, while minification would imply the image is smaller than the object, which is a related but opposite effect.