NEET Sample Paper NEET Sample Test Paper-36

  • question_answer
    If\[{{\lambda }_{v}},{{\lambda }_{x}}\]and\[{{\lambda }_{m}}\]represent the wavelengths of visible light, X-rays and microwaves respectively, then

    A) \[{{\lambda }_{m}}>{{\lambda }_{x}}>{{\lambda }_{v}}\]

    B) \[{{\lambda }_{v}}>{{\lambda }_{m}}>{{\lambda }_{x}}\]

    C) \[{{\lambda }_{m}}>{{\lambda }_{v}}>{{\lambda }_{x}}\]

    D) \[{{\lambda }_{v}}>{{\lambda }_{x}}>{{\lambda }_{m}}\]   

    Correct Answer: C

    Solution :

     Wavelength orders of given rays are listed below
    Rays Wavelength
    Visible light 4000-7900
    X-rays 1-100
    Microwaves \[{{10}^{7}}-{{10}^{9}}\]
    Obviously
    \[\Rightarrow \]\[{{\lambda }_{x}}<{{\lambda }_{v}}{{\lambda }_{m}}\]or \[{{\lambda }_{m}}<{{\lambda }_{v}}{{\lambda }_{x}}\]


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