defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Electromagnetic Waves The Traveling Electromagnetic Wave
The ratio of the amplitude of the magnetic field to the amplitude of the electric field for electromagnetic wave propagation in a vacuum is equal to
1
Unity
2
Speed of light in vacuum
3
Reciprocal of the speed of light in vacuum
4
The ratio of magnetic permeability to electrical susceptibility in a vacuum.