Sound waves cannot travel through a vacuum because sound waves require a medium, such as air, water, or solid matter, in order to propagate. A vacuum is an area of space that is completely empty, with no particles or molecules, so sound waves cannot travel through it. However, other types of waves, such as light and electromagnetic waves, can travel through a vacuum.

Which wave Cannot travel in a vacuum?

Radio waves are the only type of wave that can travel through a vacuum. All other types of waves, such as light, sound, and seismic waves, require some kind of medium, such as air, water, or solid matter, in order to travel.

Which waves travel through vacuum?

Waves that can travel through a vacuum include electromagnetic waves, such as radio waves, microwaves, infrared waves, visible light waves, ultraviolet waves, X-rays and gamma rays. These waves all travel at the speed of light (roughly 3 x 10^8 m/s) in a vacuum.