Mathematics · Electromagnetic Waves
A plane electromagnetic wave of frequency 25 MHz propagates in a vacuum along the positive x-direction. At a particular point in space and time, if the electric field is 6.3 ĵ V/m, then the magnitude of the magnetic field of the wave at this point at the same time is:
- 18.4 × 10-8 T
- 26.3 × 10-8 T
- 34.2 × 10-8 T
- 42.1 × 10-8 T✓
Correct answer
2.1 × 10-8 T
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