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During a physics lab, Ray observes a laser line passing through an unknown material towards a...

During a physics lab, Ray observes a laser line passing through an unknown material towards a boundary with air with an angle of incidence of 24.5°. The light ray emerges into the air with an angle of refraction of 33.8°. What is the index of refraction of the unknown material?

1.34

1.64

2.45

1.78

0 0
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