Question

For the propagation of electromagnetic waves

• A. Medium is required
• B. no medium is required
• C. E and B are in mutually opposite phase
• D. E and b do not contriute

Answer 1

The correct option is B no medium is required

Electromagnetic waves are a result of changing electric field creating magnetic field and the magnetic field does the same for electric field. Unlike mechanical waves, electromagnetic waves does not require material medium to transfer energy from one place to another.