BCECE Engineering BCECE Engineering Solved Paper-2012

  • question_answer
    The dimensional formula of wave number is

    A)  \[[{{M}^{0}}{{L}^{0}}{{T}^{0}}]\]                              

    B) \[[{{M}^{0}}{{L}^{-1}}{{T}^{0}}]\]

    C)  \[[{{M}^{0}}{{L}^{0}}{{T}^{-1}}]\]            

    D)         \[[{{M}^{-1}}{{L}^{-1}}{{T}^{0}}]\]

    Correct Answer: B

    Solution :

    Wave number\[=\frac{1}{\lambda }\] \[\therefore \] Dimensions of wave number \[[{{M}^{0}}{{L}^{-1}}{{T}^{0}}]\]


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