NextMockపరీక్షలు వెతకండి, ఉదా. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2018

UPPCS · ప్రశ్న 60

Which of the following was invented by Wilhelm Roentgen?

  1. Radio
  2. X-Ray Machine
  3. Electric Bulb
  4. None of the above
సమాధానం చూపించు & వివరణ

సమాధానం: (B) X-Ray Machine

వివరణ

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