If B is the magnetic field vector and E

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Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

If B is the magnetic field vector and E is the electric field vector of an electromagnetic wave, then which of the following is correct?

(c= speed of the light)

Options:

c = B/E

c = 1/EB

c = EB

c = E/B

Correct Answer:

c = E/B

Explanation:

The ratio of the electric to magnetic fields in an electromagnetic wave in free space is always equal to the speed of light. E = c. B.