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What happens to the frequency of electromagnetic waves when they travel from air to glass?
- A Increases
- B Decreases
- C Stays the same
- D Depends on the thickness of the glass
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As electromagnetic waves travel from air to glass, their frequency decreases due to the decrease in speed of light in the denser medium. This phenomenon, governed by Snell's law, illustrates how different media influence the propagation characteristics of light.