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JIPMER Jipmer Medical Solved Paper-1998

  • question_answer
    If the velocity of radio waves is 3 x 105 km/s. The frequency corresponding to wavelength of 300 m is :

    A)  10 MHz  

    B)                         1 kHz                   

    C)  1 MHz                 

    D)         10 kHz

    Correct Answer: C

    Solution :

    Here: velocity of radio waves \[=3\times {{10}^{5}}km\text{/}\sec \] \[=3\times {{10}^{8}}km\text{/}\sec \] and wavelength \[\lambda =300\,m\] \[frequency\,f=\frac{velocity\,of\,radiowaves}{wavelength}\] \[=\frac{3\times {{10}^{8}}}{300}={{10}^{6}}Hz=1MHz\]


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