Question

Light is traveling through the different media shown. In which medium does light travel fastest?

Answer 1

Aluminium or Iron or any metal really

Step-by-step explanation:

I did Gradpoint :)

Answer 2

Light travelling in a vacuum is the fastest thing in the universe. The speed would be 2.99x10^8 m/s. The answer to this question is 'vacuum', where light can travel the fastest. I hope this helps you. You're welcome!