Across
- 3. light deflected
- 5. apparent difference between the frequency at which sound or light waves leave a source
- 7. throwing back No Absorbing
- 8. beam of light or other system of waves is spread out
Down
- 1. distance traveled waves
- 2. ripples in water surface
- 4. maximum extent of a vibration or oscillation
- 6. substance or material that carries the wave