In the transfer of energy by electromagnetic waves, a medium is not necessary. Electromagnetic waves can transfer energy through the vacuum of space as well as through matter, unlike mechanical waves which require a medium to propagate
. This means that electromagnetic waves do not need particles or a physical substance to carry their energy; instead, they transfer energy via oscillating electric and magnetic fields that propagate through space
. To summarize:
- Electromagnetic waves transfer energy by oscillating electric and magnetic fields.
- They do not require a medium (such as air, water, or solid matter) to transfer energy.
- They can propagate through empty space (vacuum) without losing energy to a medium
Therefore, the presence of a medium is not necessary in the transfer of energy by electromagnetic waves.
