<prompt> True about X-rays:Differ from light in their chargeAre produced when Electron beam strikes the CathodeBone scan makes use of high-energy X-rays.Can be emitted as well as absorbed.  <response>: Ans. D. Can be emitted as well as absorbedX-rays are ionizing electromagnetic radiations, essentially produced when a stream of K shell electrons of an atom accelerated by a high voltage applied between the filament cathode and the target anode, strikes the target and the electrons give up their energy producing characteristic radiations i.e., the X-rays. X-rays have dual property - they can be emitted as well as absorbed. In bone scan gamma radiations are used not x-rays. 