How Light Travels

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Electromagnetic radiation Noun

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[uh-lek-troh-mag-net-ik ray-dee-ay-shun]

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Radiant energy Noun

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[ray-dee-uhnt en-er-jee]

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Electromagnetic spectrum Noun

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[uh-lek-troh-mag-net-ik spek-truhm]

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Wavelength Noun

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[wayv-length]

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Frequency Noun

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[free-kwuhn-see]

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Intensity Noun

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[in-ten-si-tee]

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Medium Noun

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[mee-dee-uhm]

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Vacuum Noun

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[vak-yoom]

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Speed of light Noun

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[speed uv lite]

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Light ray Noun

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[lite ray]

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