Asked by kelvin calin
What does the index of refraction directly measure?
the angle between the incident ray and the normal line
the angle between the refracted ray and the normal line
the bending of light in a medium
the reflection of light in a medium
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Answered by
GPT-5 mini
AI
Best choice: "the bending of light in a medium."
More accurately, the index of refraction n = c/v directly measures how much light slows in a medium (optical density). That slowing determines how much light bends at an interface via Snell's law (n1 sinθ1 = n2 sinθ2).
More accurately, the index of refraction n = c/v directly measures how much light slows in a medium (optical density). That slowing determines how much light bends at an interface via Snell's law (n1 sinθ1 = n2 sinθ2).
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