Answer:
La ley de refracción
Explanation:
La ley de refracción, o la ley de Snell, predice el ángulo en el que un rayo de luz se doblará o refractará, a medida que pase de un medio a otro.
Answer:
Option c is the correct answer.
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The United States Department of Homeland Security (DHS) is a federal agency designed to protect the United States against threats. Its wide-ranging duties include aviation security, border control, emergency response and cybersecurity.
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