Question
Light wave is travelling along y - direction. If the corresponding E vector at any time along the x - axis, the direction of B vector at that time is along.
Image

Answer

  1. z - axis
Explanation:
Light wave is an electromagnetic wave in which E and B are at right angles to each other as well as at right angles to the direction of wave propagation. So from the given information in the question, the direction of B vector is in positive z direction.

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