waves

3. a variable to denote or indicate the wavelength of any wave
5. the change of direction of propagation of a wave when it meets a boundary
9. waves that are created as a result of vibration
10. one type of electromagnetic wave
13. a type of wave in which medium ubration
14. the number of waves that pass a fixed point in unit time
15. a wave that is not capable of transmitting its energy
16. the pattern of disturbance caused by the movement of energy
17. a moving wave whose oscillations are perpendicular to the direction of the wave

1. the distance between identical points in the adjacent cycles
2. to view inside the body
4. the distance from the center line
6. the higher surface of the wave
7. a decrease in the density of something
8. determined by the frequency of vibration of the sound waves that produce them
11. the lowest surface part of the wave
12. the wave is an up and down disturbance