Question

The components of the electric field in an electromagnetic wave traveling in vacuum are described by Ex = 0, Ey = 0, and Ez = 9.00 sin(3.48x - wt) V/m, where x is measured in meters and t in seconds. Calculate the frequency of the wave. Submit Answer Tries 0/12 Calculate the wavelength of the wave. Submit Answer Tries 0/12 Calculate the amplitude of the magnetic field of the wave. Submit Answer Tries 0/12 Calculate the intensity of the wave. Submit Answer Tries 0/12

Answer 1

In first question the EM wave is in vacuum.So we find the frequency as below.In second question there is no angle of refraction and reflection.So we can draw the image given by you and thus find the angle as form of Sine.
for Wave in mediam progressive Ex 9.00 Sin (3.48X -W7) have vechor k = 21 Now the 3.48 a So 27 3.48 -1,805 m Again, in this case for the phase velocity of EM waves in vacrum n F C к so Kх с / ک Now 20 wave A 1.805 m 3 .48 x 3 x 108 W = 20f ... The frequency of our 3.48x3x108 1.67x108 gt ii) The wavelength of the va (112) The amplitude of magnetic field is 9 Tesla (as SI unit) iv) Now we have the formula of intensity in. en fol E12 3x108 the x in veccum 2 -12 X1 x 81854x10 +(983 U 2.

1.0757 W/m2 the radiant energy, power transferred per cinit area. the unit of intensity means 2. glass A glass 3 Cm 2 un. (According to picture) or 0 E 3cm I from the uploded picture 4 Cm. sino AC AO AC تو ان A c²+ 0c2 3 5 & sind, DE 2 OD 20 255 We know from snell's Law nisino = n2 Sinoa or MA sina ng Sinda. Sindi MB NA X VS X 1.12) Sinda Vox1.121 1.503