The electric field of an electromagnetic wave in a medium is given by Ex= 0, , Ez = 0, and Ey=2.5Vm-1 cos2π x106rads-1t-πx10-2m-1x, The wave is

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Moving along x-direction with frequency 106 Hz and wavelength 100 m

Moving along x-direction with frequency 106 Hz and wavelength 200 m

Moving along -x-direction with frequency 106 Hz and wavelength 200 m

Moving along y-direction with frequency 106Hz and wavelength 200 m

answer is B.

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Detailed Solution

if the equation is in the form ωt-kx it is travelling along +ve x direction .

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