Across
- 5. Harmonic Motion where the restoring force is directly proportional to the displacement and acts
- 8. the number of crests of a wave that move past a given point in a given unit of time
- 9. it
- 10. Angle the angle of incidence that provides an angle of refraction of 90-degrees
- 11. associated wave
- 13. the reduction of an item's density, the opposite of compression
- 14. the direction opposite to that of displacement.
- 15. difference the difference in path traversed by the two waves , measured in terms of wavelength of
- 16. the change in direction of a wave front at an interface between two different media so that
- 18. it with a given level on a logarithmic scale
- 20. speed
- 22. a fixed relationship between the phase of waves in a beam of radiation of a single
- 25. the highest point of a wave
- 26. A device that produces a very narrow, highly concentrated beam of light
- 29. to the surface at the point of reflection
- 30. at an angle larger than a particular critical angle with respect to the normal to the surface
- 31. seen in a plane mirror
Down
- 1. variation of intensities of, usually, perpendicular electric and magnetic fields
- 2. lowest point of a wave
- 3. the separation of white light into a color spectrum by a prism
- 4. image An image from which rays of reflected or refracted light appear to diverge, as from an
- 6. wave a wave produced by the acceleration of an electric charge and propagated by the
- 7. The distance between one peak of a wave to the next corresponding peak
- 12. the change in direction of a wave passing from one medium to another caused by its change
- 16. power is the ability of an imaging device to separate points of an object that are located at a
- 17. what makes a particular musical sound different from another, even when they have the same
- 19. and loudness
- 20. the rate at which energy flows through a unit area perpendicular to the direction of wave
- 21. A substance that makes possible the transfer of energy from one location to another
- 23. a unit used to measure the intensity of a sound or the power level of an electrical signal by
- 24. of Incidence the angle that a straight line, ray of light, etc., meeting a surface, makes with a
- 27. Internal reflection a phenomenon which occurs when a propagating wave strikes a medium
- 28. angular distance or it is the power of an optical instrument to separate far away objects that are
