X-Rays : In 1895, a German Physicist, W. C. Röentgen, discovered X-Rays. He pointed, when high speed electrons are bombarded on a clean metal surface radiation of very short wavelength are emitted. X-rays are electromagnetic radiations of very short wave length and very high frequency. Wave length of x-rays varies from 0.001 to 10 nmHow X-rays are produced| X-rays Discovery Properties, Uses and Types