Which term describes energy that travels in transverse waves and does not require a medium?

Which term describes energy that travels in transverse waves and does not require a medium?

• A. Transmission
• B. Refraction
• C. Electromagnetic Radiation
• D. Reflection

Answer: (C)

Electromagnetic radiation is energy that travels as transverse waves and does not require a medium, so it can move through vacuum. The energy comes from oscillating electric and magnetic fields that are perpendicular to the direction of travel, which lets light, radio waves, and X-rays propagate through empty space. This property—traveling without needing a material medium—is what sets it apart from mechanical waves. The other terms describe different ideas: transmission refers to sending energy or signals from one place to another, refraction is the bending of waves at a boundary between media, and reflection is the bouncing of waves off a surface.

Electromagnetic radiation is energy that travels as transverse waves and does not require a medium, so it can move through vacuum. The energy comes from oscillating electric and magnetic fields that are perpendicular to the direction of travel, which lets light, radio waves, and X-rays propagate through empty space. This property—traveling without needing a material medium—is what sets it apart from mechanical waves. The other terms describe different ideas: transmission refers to sending energy or signals from one place to another, refraction is the bending of waves at a boundary between media, and reflection is the bouncing of waves off a surface.