Across
- 6. the incident ray bouncing back in the same medium after striking the reflecting surface
- 10. a wave in which the particles of the medium move progressively in the direction of the wave propagation
- 15. the change in direction of a wave passing from one medium to another caused by its change in speed
- 16. reflection of light from a surface such that an incident ray is reflected at many angles, rather than at just one angle
- 18. a wave vibrating at right angles to the direction of its propagation
- 20. a decrease in the density of something
- 21. substance or material that carries the wave
- 22. a wave vibrating in the direction of propagation
- 24. the pulsation caused by the combination of two waves of slightly different frequencies
- 25. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given color and for the given pair of media
- 26. the spreading of waves around obstacles
Down
- 1. the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer
- 2. the entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light
- 3. a force that squeezes something together
- 4. wave that is not capable of transmitting its energy through a vacuum
- 5. relatively large selective response of an object or a system that vibrates in step or phase, with an externally applied oscillatory force
- 7. the angle of reflection of the light is equal to the angle of incidence and on the opposite side of the normal to the point of incidence
- 8. property of certain electromagnetic radiations in which the direction and magnitude of the vibrating electric field are related in a specified way
- 9. the angle of the reflected ray is equal to the angle of the incident ray
- 11. combination of two waves moving in opposite directions, each having the same amplitude and frequency
- 12. The sensation of a frequency
- 13. electromagnetic radiation with a single constant frequency
- 14. The spectrum seen when incident waves are selectively altered by a reflecting substance
- 17. regular variation in magnitude or position around a central point.
- 19. the position of maximum displacement in a standing wave system
- 23. the positions of continuous zero displacement