JEE Main20199 Jan 2019Morning ShiftPhysicsElectromagnetic WavesActual
A plane electromagnetic wave of frequency 50 M H z travels in free space along the positive x - direction. At a particular point in space and time, E → = 6.3 j ^ V / m , The corresponding magnetic field B , → at that point will be:
Options
- A2.1 × 10 - 8 k ^ T
- B18.9 × 10 8 k ^ T
- C18.9 × 10 - 8 k ^ T
- D6.3 × 10 - 8 k ^ T
Correct answer
A. 2.1 × 10 - 8 k ^ T
Step-by-step solution
As we know E B = C E = 6.3 V / m B = E C = 6.3 3 × 10 8 T = 2.1 × 10 - 8 T