Review Constants Problem Solving Strategy 23.1 Electromagnetic waves Learning Goal: To apply Problem Solving Strategy 23.1 Electromagnetic waves. An electromagnetic wave of wavelength 435 nm is traveling in vacuum in the -z direction. The electric field has an amplitude of 2.70 x 10-3 V/m and is parallel to the x axis. What are the frequency and the magnetic field amplitude of this wave? SET UP 1. For the problems of this chapter, try to concentrate on basic relationships, such as the relation of Ē to B (both magnitude and direction), how the wave speed is determined, the transverse nature of the waves, and so on. Don't get sidetracked by mathematical details. SOLVE 2. In the discussions of sinusoidal waves, both traveling and standing, you need to use the language of sinusoidal waves from Chapter 12. Don't hesitate to go back and review that material, including the problem-solving strategies presented in those chapters. Keep in mind the basic relationships for periodic waves, v= \f and X = UT. For electromagnetic waves in vacuum, v=c. Be careful to distinguish between ordinary frequency f, usually expressed in hertz, and angular frequency w = 2nf, usually expressed in radians per second. Also remember that the wave number k is k=25/1 SET UP Before writing any equations, organize your information and draw appropriate diagrams. Review | Constants Part A Which of the following are known quantities for this electromagnetic wave? Check all that apply. frequency wavelength speed direction of propagation Submit Request Answer Part B Which of the following are known quantities for this electromagnetic wave? Check all that apply. amplitude of the electric field amplitude of the magnetic field direction of the electric field direction of the magnetic field