Question

Which type of wave can travel through the lack of matter in a vacuum?
sound
mechanical
seismic
light

Answer 1

The type of wave that can travel through the lack of matter in a vacuum is **light**. Light is an electromagnetic wave, which does not require a medium to propagate. In contrast, sound, mechanical, and seismic waves all require a medium (such as air, water, or solid materials) to travel through.