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Who discovered X-rays?
A. Thomas Edison
B. Wilhelm Roentgen
C. Marie Curie
D. Albert Einstein
Correct Answer Is Option = Wilhelm Roentgen
Notes / Explanation
X-rays were discovered by Wilhelm Roentgen, a scientist whose discovery of these rays was of great importance, particularly in the field of medicine. X-rays are a kind of invisible ray, a form of radiation, that has the remarkable property of being able to pass through many materials that ordinary light cannot pass through, including the soft parts of the body, while being stopped to a greater degree by denser materials such as the bones. Roentgen discovered these rays while carrying out experiments, when he noticed that a certain effect was being produced by some unknown rays coming from his apparatus, rays that were invisible but that could pass through materials and produce effects at a distance, and he investigated these mysterious rays, which he called X-rays, the letter suggesting something unknown. He discovered their remarkable properties, including their ability to pass through the soft parts of the body but not so easily through the bones, so that they could be used to produce an image showing the bones within the body. This discovery was of enormous importance, particularly for medicine, because it made it possible, for the first time, to see inside the body without cutting it open, by using X-rays to produce an image showing the bones and certain other structures, which is of great value in medicine, for example in seeing broken bones and in diagnosing many conditions. The use of X-rays became, and remains, an extremely important tool in medicine, as well as having other uses, for example in examining the internal structure of objects. Roentgen's discovery was recognised as a great scientific achievement. It should be noted that, while X-rays are very useful, they must be used with care, because too much exposure to them can be harmful. The study of the great discoveries of science and their discoverers is a part of general knowledge. For PPSC and other competitive examinations, the key points to remember are that X-rays were discovered by Wilhelm Roentgen, that X-rays are a form of invisible radiation that can pass through many materials, including the soft parts of the body, while being stopped to a greater degree by denser materials such as the bones, that his discovery made it possible to see inside the body without cutting it open, which was of enormous importance for medicine, and that X-rays, while very useful, must be used with care because too much exposure can be harmful.
