Here is our ASVAB practice question for this week! The answer is posted in the comments below!
Refraction is the change in direction of a wave (like light) as it passes through different mediums (air, water). The refractive index is a number that describes the speed of light in a specific medium compared to the speed of light in a vacuum.
For example, the refractive index of water is 1.333, which means that light travels 1.3 times faster in a vacuum than it does in water.
The answer is B).
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