waves

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Across
  1. 4. frequency
  2. 5. light
  3. 7. wave speed
  4. 10. reflection
  5. 11. wave
Down
  1. 1. position Doppler Effect
  2. 2. crest
  3. 3. periodic wave
  4. 6. polarization
  5. 8. decibel
  6. 9. wavelength