A plane electromagnetic wave is propagating through vacuum. If E→=E0sin(ωt−kz)i^ and the wave is propagating along positive z-axis, then at that instant, magnetic field vector is given by
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a
B→=CE0cos(ωt−kz)j^
b
B→=(E0C)sin(ωt+kz)j^
c
B→=CE0sin(ωt+kz)(−j^)
d
B→=(E0C)sin(ωt−kz)j^
answer is D.
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Detailed Solution
E→ and B→ are always in phase and EB=C,Also direction of propagation of wave is same as the direction of E→×B→.