Question

In which location would light travel at the highest speed

A. Within a diamond
B. Within a glass fiber
C. Between the Sun and Earth
D. In a swimming pool.

Answer 1

C. Between the Sun and Earth

Step-by-step explanation:

Test approved

Answer 2

C. Between the Sun and Earth

Step-by-step explanation:

C. Between the Sun and Earth

Reason is the space between the earth and sun is the least dense medium (like a vacuum) out of all the mediums so light would travel the fastest here.