NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2018

UPPCS · प्रश्न 60

Which of the following was invented by Wilhelm Roentgen?

  1. Radio
  2. X-Ray Machine
  3. Electric Bulb
  4. None of the above
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (B) X-Ray Machine

स्पष्टीकरण

Wilhelm Conrad Röntgen discovered X-rays in 1895 and received the first Nobel Prize in Physics (1901).