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| 1. |
Define progressive and stationary waves and write the equation for these waves |
| Answer» A\xa0progressive wave\xa0has points of given phase, such as a crest or a dip which travel forwards, whilst the medium remains where it is. ...\xa0Standing waves\xa0are formed by the superposition of two travelling\xa0waves\xa0of the same frequency (with the same polarisation and the same amplitude) travelling in opposite directions.\xa0A\xa0progressive\xa0or travelling\xa0wave\xa0moves away from the source , or it moves relative to a coordinate system\xa0in a\xa0fluid , or it advances on the sea surface or at an intermediate depth. A\xa0stationary\xa0or\xa0standing wave\xa0remains\xa0in a\xa0constant position .\xa0A\xa0progressive wave\xa0is a\xa0wave\xa0where continuous energy transfer takes place between the crest and trough (transverse\xa0wave) or between rarefactions and compressions (long\xa0waves). | |