5th Class Social Science Sample Paper Social Studies - Sample Test Paper-6

  • question_answer
    Identify the inventor and his invention from the given description.
    It was invented accidently by a German Physicist in 1895 while experimenting with a gas discharge tube. He placed his hand in front of the tube and saw the image of his bone projected on a fluorescent screen. At present it is widely used by the doctors all over to examine bones.

    A)  Wilhelm Roentgen, X-Ray

    B)  Raymond Vahan Damadian, MRI

    C)  lan Donald, Ultrasound

    D)  Alexander Fleming, Penicillin

    E)  None of these

    Correct Answer: A


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