Which of the following is correct regarding X-rays

Options

A. When incident on certain materials such as barium platocyanide, X-rays cause fluorescence (light is emitted from the material)
B. When passed through a gas, X-rays ionize the molecules of the gas
C. When X-ray passes through a material of thickness x, its final and initial intansity (I and `I_(0)`) are related as `I=I_(0) e^(-mu x), mu`: attenuation coefficient
D. All option are correct

Answer

D