Air on X-rays appears -
Ans. is 'b' i.e., Black o Structures that are dense (such as bone) will block most of the x-ray particles, and will appear white.o Metal and contrast media (special dye used to highlight areas of the body) will also appear white.o Structures containing air will be black, and muscle, fat, and fluid will appear as shades of gray.
White
Black
Grey
None of the above
Physics of Radiotherapy