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Punjab Medical Punjab - MET Solved Paper-2011

  • question_answer
    The ratio of the specific charge of an electron to that of an \[\text{ }\!\!\alpha\!\!\text{ -}\]particle is

    A) \[1:2\]                                  

    B) \[1:\frac{1}{4}\]

    C) \[1:4\]                                  

    D) \[1:\frac{1}{2}\]

    Correct Answer: D

    Solution :

    \[\frac{\text{Specific}\,\,\text{charge}\,\,\text{of}\,\,\text{electron}}{\text{Specefic}\,\,\text{charge}\,\,\text{of}\,\,\text{ }\!\!\alpha\!\!\text{ -particle}}\]                 \[=\frac{e/m}{2e/um}\]                 \[=\frac{1}{1/2}\]                 \[=1:\frac{1}{2}\]


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