Question

Andre listed some properties of electromagnetic waves.
1) transfer thermal energy by radiation
2) can transfer energy over great distances
3) need matter to transfer energy through
4) are disturbances that carry energy

Which best describes Andre’s error?
Electromagnetic waves transfer thermal energy by conduction.
Electromagnetic waves can only transfer energy over short distances.
Electromagnetic waves can transfer energy through empty space.
Electromagnetic waves are not considered disturbances.

Answer 1

Explanation:

i think the first one is the answer..

Answer 2

Electromagnetic waves can transfer energy through empty space. (option 3)

• Electromagnetic waves are those that are created as a result of varying electrical and magnetic field intensity.
• The EM waves donot require a medium for their propagation. They can travel through space. This is because they contain vibrations of electric and magnetic vectors which donot need any medium.
• An example is the propagation of sunlight from the Sun to the earth through space.