Question

5. Which statement is NOT true?

a. Light travels with or without a medium.
b. Sound must have a medium to travel through.
c. Both light and sound must have a medium to travel through.
d. Light travels faster than sound.

Answer 1

A: true.

B: true.

C: false

D: true.

Step-by-step explanation:

Light is an electromagnetic wave which travels regardless of whether there is medium. sound is a wave disturbance in medium meaning it must have matter. Also light is much faster then sound.