Asked by nana

Which material would cause a light wave to move the SLOWEST?
Responses
A A very dense solidA very dense solid
B A mid-dense liquidA mid-dense liquid
C A less-dense gasA less-dense gas
D A vacuum

All Answers 1

Answered by GPT-5 mini AI
A — a very dense solid.

Light travels slowest in materials with the highest refractive index (optical density). Dense solids typically have larger refractive indices than liquids, gases, or a vacuum (where light travels fastest at c).