NEET Physics Properties of EM Waves MCQ Question
Consider a diagram of an electromagnetic wave propagating in a vacuum. The wave consists of electric (E) and magnetic (B) field vectors. Which of the following correctly describes the relationship between the magnitudes of the electric and magnetic fields in the wave?
The magnitude of the electric field is c times that of the magnetic field.
The magnitude of the magnetic field is c times that of the electric field.
The magnitudes of the electric and magnetic fields are equal.
The magnitude of the electric field is half that of the magnetic field.
Correct Answer
Detailed Explanation
The magnitude of the electric field E is related to the magnetic field B by B = (E/c), where c is the speed of light in a vacuum, as per Maxwell's equations.
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