This ray travels in a straight line. It is highly capable of piercing. X-rays do not deviate from electromagnetic waves , electric fields or magnetic fields. Its wavelength is very short , frequency is very high. Like ordinary light, X-rays have reflection , refraction , aberration , refraction and convection . It has reactions on photographic plates. This ray has light electrical action. Zinc sulfide , barium, platinosyanide, etc., emit these rays. It is ion-producing radiation. It is charge neutral. X-ray invisible. When normal light falls on the retina, the sensation of vision develops, but this is not the case with them. X-ray rays follow a disproportionate formula. It can destroy living cells. It creates fluorescence. It travels at the speed of light i.e. about 3 × 108 ms-1 .