Chapter 25, Problem 17P

25.4 and 25.5 Frequency, wavelength, and the electromagnetic spectrum and Mathematical description of EM waves and EM wave energy

* (a) The amplitude of the $\stackrel{\to }{E}$ field oscillations in an electromagnetic wave traveling in air is 20.00 N/C What is the amplitude of the $\stackrel{\to }{B}$ field oscillations? (b) The amplitude of the $\stackrel{\to }{B}$ field oscillations in an electromagnetic wave traveling in a vacuum is $3.00\times {10}^{-3}\text{ T}$. What is the amplitude of the oscillations of the $\stackrel{\to }{E}$ field?