Question

An example of a wave that can travel through a material medium alone is:

• A. radio waves
• B. gamma rays
• C. sound waves
• D. infrared waves

Answer 1

Answer:

C. sound waves

• Sound waves are mechanical waves, they require a material medium (solid, liquid, or gas) to travel through.

• They cannot propagate through a vacuum.

• Radio waves, gamma rays, and infrared waves are all forms of electromagnetic waves.

• Electromagnetic waves do not require a material medium to propagate and can easily travel through the vacuum of space.