An electromagnetic wave consists of perpendicular vibrations of magnetic and electric fields.
- They can transfer energy from one point to another.
- They are transverse wave
- They can travel through vacuum
- They travel at the same speed of the light
- They can be polarised
- They all can undergo reflection, diffraction, refraction and interference
Yr 2013 P1 Q30 @ pg 338: positions of infra-red, ultra-violet and gamma ray in the E.M.W