Harmonics


Figure 5.12: First three normal modes for a string ended with two perfect boundaries. Two fixed boundaries (left) lead to standing waves that end with nodes on both sides, while two free boundaries (middle) lead to standing waves that end with antinodes on both sides. A combination of different boundaries (right) leads to standing waves that end with one node and one antinode. Normal modes appear only for very particular relations between inter-border distance L, wavelength λ and therefore frequency f.

This is the supplementary material of the book 'Building physics'. Contact address: [].

Updated . Web page has been read by visitors since May 2017.

All Rights Reserved. No part of this web site may be reproduced, published, distributed, displayed, performed, copied or stored for public or private use in any information retrieval system, or transmitted in any form by any mechanical, photographic or electronic process, including electronically or digitally on the Internet or World Wide Web, or over any network, or local area network, without written permission of the author.