Question

IŞIK UNIVERSITY, PHYS 102-Gell First Name Last Name Student ID ROW NUMBER P4 Grade: P4. (20 points) The electric field component of an electromagnetic wave polarized along the y axis is given by Ey 180 sin(107x-3. 101st) where all quantities are in SI units. Take r-3. (10-4" x 10-TrnA) a) (5 points) Find the wavelength of the electromagnetic wave Giver b) (5 points) What is the direction of propagation of the electromagnetic wave. c) (5 points) Find the magnetic field component of the wave. d) (5 points) Find the poynting vector of the wave.

Answer 1

E_y = 180 sin(10^7 x - 3 times 100^15 t) k = 10^7 k = 2 pi/lambda lambda = 2 pi/k lambda = 2 pi times 10^-7 (a) lambda = 6 times 10^-7 meter (b) x - is the direction of propagation (c) B_z = B_0 sin(kx - wt) B_0 = E_0/C = 180/3 times 108 = 60 times 10^-8 = 6 times 10^-7 T B_z = (6 times 10^-7T) sin(10^7 x - 3 times 10^15 t)