Vibrations and Waves

1. Interval of eight diatonic degrees between two tones
3. Originates from vibrations; leads to vibrations
4. Pendulum having two threads
6. Useful for reducing vibrations
8. French physicist who demonsrated Earth's rotation by suspending a pendulum
9. Swinging motion
11. Matching of frequencies
12. What always remains conserved
15. A tremendous increase in amplitude
16. Combining two different frequencies to produce two new frequencies in radio reception
19. A renowned vibration instrumentation brand
20. Prevention of vibrations
22. Repeating after a fixed interval of time
24. Scientist who observed swinging of lantern
25. Vibrations in the air
26. A kind of analysis of periodic functions

2. A type of vibration damper
3. Occurs at resonance
5. Causes vibrations while in motion
6. An optical instrument for non-contact measurement of vibrations
7. Signals used in tone dialing
8. To wave rapidly in irregular manner
10. Pendulums of same length of have time periods
13. Series of subsidiary vibrations, whose frequencies are in simple ratios
14. Results from interference of two waves
17. English physicist who discovered Argon and also worked on dynamics of resonance
18. A kind of failure resulting from vibrations
21. Various ways in which a system can vibrate
23. What all waves carry and transmit