Answer :

Your answer is false because they are waves and have no mass.

Answer:

false

Explanation:

Sound and light are wave that travel from medium to the to other. Sound is a mechanical wave that requires medium for propagation whereas light is an electromagnetic wave it does not require medium for propagation. Wave do  not have mass. They are not made of matter. Although, light does show dual nature of particle and wave, still its wave nature dominate over its particle nature. hence the given statement is false