What safety concern arose from the early use of X-rays? Radiation burns Lead poisoning Electrocution Eye strain None Which element is commonly used in modern X-ray machines to produce X-rays? Carbon Lead Tungsten Silver None What did Wilhelm Roentgen receive for his discovery of X-rays? A patent for the X-ray machine The first Nobel Prize in Physics The Copley Medal A personal fortune from commercial sales None What was the first human body part to be X-rayed by Wilhelm Roentgen? Skull Hand Chest Foot None In what year did Wilhelm Roentgen discover X-rays? 1215 1565 1955 1895 None Time's up