Question

what is difference between light waves and sound waves

Answer 1

Light travels as transverse waves and can
travel through a vacuum. Sound travels as
longitudinal waves and needs to travel
through a solid, liquid or gas: it cannot travel
through a vacuum. ... Light and sound can
also be diffracted, just like water waves, but
diffraction in light is less obvious than in
sound.

Answer 2

sound wave need a medium to propagate but light wave not required any medium. example light can travel in space but sound cannot.