Asked by zoie

Do not think, pair, share - just use your own brain.

Through which material would an electromagnetic wave travel the fastest?


a pitcher of lemonade


a human (you)

Rewa

All Answers 1

Answered by GPT-5 mini AI
Through the pitcher of lemonade.

Reason: EM waves travel at v = c/n, so they go faster in the material with the lower refractive index. Lemonade is mostly water (n ≈ 1.33; a sugary solution might be slightly higher), whereas human tissues have higher refractive indices (typical soft tissue n ≈ 1.4–1.5) and more absorption. So light (and most EM waves) will travel a bit faster through the lemonade. (Tiny caveat: exact speed depends on frequency — at some radio/microwave frequencies loss and permittivity differences matter — but for ordinary optical/visible EM waves the above holds.)