J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    The de-Broglie wavelength \[\lambda \]of an electron accelerated through a potential V(in volt) is

    A)  \[\frac{1.227}{\sqrt{V}}nm\]

    B)  \[\frac{0.1227}{\sqrt{V}}nm\]

    C)  \[\frac{0.01227}{\sqrt{V}}nm\]

    D)  \[\frac{0.1227}{\sqrt{V}}\overset{\text{o}}{\mathop{\text{A}}}\,\]

    Correct Answer: A

    Solution :

    The de-Broglie wavelength \[\lambda =\frac{1.227}{\sqrt{V}}nm\]


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