KCET2023PhysicsElectromagnetic Waves
The ratio of the magnitudes of electric field to the magnetic field of an electromagnetic wave is of the order of
Options
- A10⁻⁸ ~ms ⁻¹
- B10^5 ~ms ⁻¹
- C10⁻⁵ ~ms ⁻¹
- D10^8 ~ms ⁻¹
Correct answer
D. 10^8 ~ms ⁻¹
Step-by-step solution
As we known, v= E B or v= | E | | B | For an electromagnetic wave, v=c | E | | B | =c=3 10^8 ~ms ⁻¹ | E |:| B | is of the order of 10^8 ~ms ⁻¹ .