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Need help with this question. 5. The electric field associated with an electromagnetic wave is expressed as, E(r, t)-[2i-3j + 2k] ( 104 Vrn) cos [ { 5X10π (x + 2y + 2z)/3)-15tX 10%], where x, y, z are in meter and t is in second. Find (a) the direction of propagation, (b) velocity, (c) wavelength, (d) B(r, t), and (e) intensity and (f polarization state of the wave. (6+5+4+3+4 +4 26 pts.)

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Comparison gives Oirection of propagation, 1· 2,2 乙 kXE。 2-3 2 1 of 1

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