Examples       Answers

1.  Given that  an electromagnetic wave travels north and its electric field is oscillating in a plane that is oriented in an East-West direction.

      Describe the direction of the magnetic field vector for this wave. 

 

2. Travelling through a perfect vacuum.

 

    a.  Can sound waves do this?

 

    b.  Can electromagnetic waves do this? 

 

3.  Given that the wavelength of a wave is 1.60 cm, what is its frequency?