STANDARD Physics Wave Propagation in Vacuum MCQ Question
The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to
the speed of light in vacuum
reciprocal of speed of light in vacuum
the ratio of magnetic permeability to the electric susceptibility of vacuum
unity
Correct Answer
Detailed Explanation
The amplitudes of electric field and magnetic field for an electromagnetic wave propagating in vacuum are related as E₀ = B₀c. Therefore, B₀/E₀ = 1/c.
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