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The oscillating electric and magnetic field vectors of electromagnetic waves are oriented along:

1. the same direction and in phase
2. the same direction but have a phase difference of 90°
3. mutually perpendicular directions and are in phase
4. mutually perpendicular directions but has a phase difference of 90°

Correct answer: mutually perpendicular directions and are in phase

Solution

In electromagnetic waves, the electric and magnetic field vectors are mutually perpendicular to each other and also perpendicular to the direction of wave propagation. They oscillate in phase.

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