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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Mock Test - Atomic Structure

  • question_answer
    The MRI (magnetic resonance imaging) body scanners used in hospitals operate with 400 MHz radio frequency The wavelength corresponding to this radio frequency is

    A) 0.75 m 

    B) 0.75 cm

    C) 1.5m                

    D) 2cm

    Correct Answer: A

    Solution :

    [a] \[\lambda =\frac{c}{v}=\frac{3\times {{10}^{8}}}{400\times {{10}^{6}}}=0.75m\]


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