RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    The degree of air pressure in coolidge tube

    A)  zero             

    B)  \[{{10}^{-6}}\]mm (mercury)

    C)  \[{{10}^{-3}}\]mm (mercury)

    D)  1 mm (mercury)

    Correct Answer: B

    Solution :

     Air pressure in coolidge X-ray tube remain the order of\[{{10}^{-6}}mm\].


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