MULTIPLE CHOICE 1. X-rays were discovered a. November 8, 1805 b. November 8, 1875 c. November 8, 1895 d. November 8, 1985 ANS: C X-rays were discovered November 8, 1895. 2. Barium platinocyanide was the material in Dr. Roentgen’s laboratory that a. covered the cathode ray tube b. fluoresced when the cathode ray tube was energized c. was used to produce the radiograph of Bertha Roentgen’s hand d. protected the people in the room from the x-rays ANS: B A piece of cardboard covered with barium platinocyanide fluoresced when the tube was energized, leading to further investigation. 3. Wilhelm Roentgen’s lab was located in a. Wurzburg b. Zurich c. Paris d. Boston ANS: A Dr. Roentgen’s lab was located at the University of Wurzburg in Wurzburg, Germany. 4. The first radiograph produced by Dr. Roentgen was of a. his own hand b. his daughter’s hand c. his son’s hand d. his wife’s hand ANS: D The first radiograph was