question_answer 11)

Suppose that the electric field part of anelectromagnetic wave in vacuum is . (a) What is the direction of propagation? (b) What is the wavelength ? (c) What is the frequency ? (d) What is the amplitude of the magneticfield part of the wave? (e) Write an expression for the magnetic fieldpart of the wave.  

Answer:

Here Comparing it with standard equation we get the following answers (a) direction i.e., negative  direction because coefficient of  is positive. (b) Using  we get (c) Frequency, (d) or (e) Using