A plane electroagnetic wave travels in vacum along x-direction. What can you say about the direction of electric and magnetic field vectors?

Explanation

To solve the problem, we need to analyze the behavior of electric and magnetic fields in a plane electromagnetic wave traveling in a vacuum along the x-direction.

### Step-by-Step Solution:

1. **Understanding the Direction of Propagation**:
- The problem states that the electromagnetic wave is traveling along the x-direction. In vector notation, this can be represented as the unit vector \( \hat{i} \).

2. **Properties of Electromagnetic Waves**:
...