2. Solved Papers
  3. Manipal Medical

Manipal Medical Manipal Medical Solved Paper-2002

  • question_answer
    The velocity of all radio waves in free space is \[3\times {{10}^{8}}\]m/s. The frequency of a radio wave of wavelength 150 m is:

    A)  20 kHz        

    B)  2 kHz

    C)  2 MHz         

    D)  1 MHz

    Correct Answer: C

    Solution :

     Here: Velocity of electromagnetic waves in free spaces and wavelength \[\upsilon =3\times {{10}^{8}}m/s\] \[\lambda =150\text{ }m\] Using the relation for the frequency of radio waves is given by \[=\frac{\upsilon }{\lambda }=\frac{3\times {{10}^{8}}}{150}\] \[=2\times {{10}^{6}}Hz=2\text{ }MHz\]


You need to login to perform this action.
You will be redirected in 3 sec spinner