Why the second mode has twice the frequency of the fundamental
{"Image DocumentName": "Why the second mode has twice the frequency of the fundamental", "Image ImageDescription": "Exciting the fundamental. Excite a pulse and then wait until it goes down the string and comes all the way back. Exciting the second harmonic. When the first pulse gets to the end the string, you excite the next pulse. This means you excite pulses twice as often. You must drive at twice the frequency to excite the second mode.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}