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  1. Coolis tube is used to produce

  2. A.

     Radio waves

    B.

     Micro waves

    C.

     X-rays

    D.

     Gama rays

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    Answer : Option C

    Explanation :

    X-rays are part of the electromagnetic spectrum, an ionizing radiation with wavelengths shorter than ultraviolet light. X-ray tubes evolved from experimental Crookes tubes with which X-rays were first discovered in the late 19th century, and the availability of this controllable source of X-rays created the field of radiography, the imaging of opaque objects with penetrating radiation.


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