X-rays were discovered by?
The correct option is B)Roentgen
German physics professor Wilhelm Roentgen was the first person to identify electromagnetic radiation with a wavelength range currently known as X-rays. Although many people had previously seen the effects of X-ray beams, Roentgen was the first to thoroughly investigate them. Although they are now referred to as Roentgen rays, he called them X-rays to emphasise the novel character of his discovery. For his outstanding accomplishment, he received the first Nobel Prize in Physics in 1901.