X-rays penetrate different objects more or less according to their density.
What Are X-rays?
An X-ray is a diagnostic test which uses the invisible electromagnetic energy beams to produces the images of internal bones, tissues and organs onto film. X-rays pass through body structures onto specially-treated plates and a “negative” type picture is made. X-rays use invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs on film. Standard X-rays are performed for many reasons, including diagnosing tumours or bone injuries. X-rays are made by using external radiation to produce images of the body, its organs, and other internal structures for diagnostic purposes. When the body undergoes X-rays, different parts of the body allow varying amounts of the X-ray beams to pass through. The soft tissues in the body allow most of the X-ray to pass through and appear dark grey on the film. A bone or a tumour, which is denser than the soft tissues, allows few of the X-rays to pass through and appears white on the X-ray. At a break in a bone, the X-ray beam passes through the broken area and appears as a dark line in the white bone. Radiation during pregnancy may lead to birth defects. Always tell your radiologist or doctor if you suspect you may be pregnant.