Answer:Light (electromagnetic) energy does not require a medium through which to travel.
Step-by-step explanation:
Electromagnetic waves doesnt need to medium for travell
Ex ; Ultra violet rays , X rays
Sound waves needs to medium to travell but electromagnetic waves doesnt
Electromagnetic waves are constructed due to perpendicular electric field and magnetic field
Application of electromagnetic waves
Visible rays helps to see anything
IR rays is used in medical industry for cancer treatment