QQuestionPhysics
QuestionPhysics
"In a perfect vacuum, light waves travel at 300,000 kilometers per second. When light waves travel through materials, such as air, they:
A. speed up
B. slow down
C. increase in amplitude
D. heat up"
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Answer
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Step 1Let's solve this problem step by step:
Step 2: Understand the Fundamental Concept of Light Propagation
In a vacuum, light travels at its maximum speed of $$3 \times 10^{8} \mathrm{~m/s}$$.
Light travels at different speeds depending on the medium it passes through. When light enters a different medium, its speed changes due to the medium's optical properties.
Final Answer
Slow down
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