Question

Which of these travels the fastest?

a. sound in air
b. rocket in space
c. light in vacuum
d. microwaves in glass

Answer 1

C) Light in vacuum

Light in a vacuum, on the order of magnitudes, travels much faster than the other three. In fact, the speed of light in a vacuum is the theoretical limit of how fast anything can travel. 

Answer 2

Answer:

C

Explanation: