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Q.

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→.
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