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X-rays X-rays defined as: x-rays 1) X-rays were discovered by Roentgen in 1895. These rays were also called as Roentgen rays. 2) X-rays are  electromagnetic waves  of wavelength ranging 0.1 Å to 100 Å. 3) The frequency of X-rays is from 10 16  Hz to 10 19  Hz. 4) X-rays are produced when fast moving electrons are suddenly stopped on a metal of light  atomic number . 5) The basic requirements for the production of X-rays are as follows: a) A source of electron b) an effective means for accelerating the  electrons c) a target of high atomic number material. Properties of X-rays 1) X-rays are not deflected by electric and  magnetic fields . It shows that X-rays are unchanged. 2) X-rays are electromagnetic waves which are emitted in the form of photons. 3) X-rays travel with a speed 3 × 10 8  m/s through vacuum. 4) X-rays obey the phenomena of interface, diffraction and polarization like light. 5) X-rays are ionize the gas...