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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

  • question_answer
    In an X-rays tube, the electron accelerated by potential V volt, the minimum wavelength of X-rays will be

    A)  \[\frac{2400}{V}\]\[\overset{o}{\mathop{\text{A}}}\,\]

    B)  \[\frac{12400}{V}\]\[\overset{o}{\mathop{\text{A}}}\,\]

    C)  \[\frac{12.4}{V}\]\[\overset{o}{\mathop{\text{A}}}\,\]

    D)  \[\frac{V}{124000}\]\[\overset{o}{\mathop{\text{A}}}\,\]

    Correct Answer: B

    Solution :

     \[{{\lambda }_{\min }}=\frac{12375}{V}\overset{o}{\mathop{\text{A}}}\,\] \[=\frac{12400}{V}\overset{o}{\mathop{\text{A}}}\,\]


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