Waves

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Across
  1. 1. Rainbow
  2. 4. 300,000km/s
  3. 6. height
  4. 8. Particle of light
  5. 10. Sun
Down
  1. 2. Thermal radiation
  2. 3. bounced
  3. 5. Hulk
  4. 7. Electric magenetic spectrum
  5. 9. Medical scanner