Which is the ray used in ct scan?

The ray used in a CT scan is the X-ray. A CT scan, or computed tomography scan, is a medical imaging technique that uses a series of X-ray images taken from different angles around the body to create cross-sectional images of the body. The X-ray beam is passed through the body and the resulting data is processed by a computer to create the images. CT scans can be used to diagnose and monitor a variety of conditions, including cancer, heart disease, and bone injuries.