Question

Light travels in waves. Which of the following statements about light waves is NOT true?

A
They travel in straight lines.

B
They can travel through any substance.

C
They can come from natural or artificial sources.

D
They change direction when they are reflected or refracted.

Answer 1

I think it is B.

Step-by-step explanation:

If it can change direction when they are reflect or refract than it can't go through every substances, it might be able to go through some substances.

Answer 2

Letter A: They travel in straight lines.