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Suppose that the electric field part of an electromagnetic wave invacuum is E (3.1 N/C) cos [(1.8 rad/m) y + (5.4 x 102 rad/sd)i.a) What is the direction of propagation?(b) what is the wavelength λ ?(c) What is the frequency v?d) What is the amplitude of the magnetic field part of the wave?l Writs an expression for the magnetic field part of the wave.

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