{"id":172,"date":"2013-12-29T14:51:14","date_gmt":"2013-12-29T14:51:14","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/soundwaves\/?page_id=172"},"modified":"2014-01-24T12:30:46","modified_gmt":"2014-01-24T12:30:46","slug":"172-2","status":"publish","type":"page","link":"https:\/\/blog.soton.ac.uk\/soundwaves\/wave-interaction\/172-2\/","title":{"rendered":"Summary"},"content":{"rendered":"<h4>Superposition of waves<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-in3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-177\" alt=\"Web-in3\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-in3.png\" width=\"156\" height=\"118\" \/><\/a><br \/>\nWaves can be combined together in such a manner as to cause either constructive or destructive interference.<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4>Reflection<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbreflex.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-179\" alt=\"thumbreflex\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbreflex-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nOne dimensional waves reflecting from boundaries can be decomposed into two component waves. The phase of the reflected wave depends on the kind of boundary. Three dimensional waves reflecting from boundaries create more complicated patterns.<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4>Refraction<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbrefract.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-184\" alt=\"thumbrefract\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbrefract-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nWhen waves travel into a medium with a different wave speed they are refracted and travel in a different direction. This change of direction can be found from Snells law.<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4>Diffraction<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbdiffract.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-181\" alt=\"thumbdiffract\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbdiffract-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nDiffraction involves the bending of waves as they pass through narrow openings or around corners.<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4><\/h4>\n<h4>Interference<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbinterf.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-183\" alt=\"thumbinterf\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbinterf-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nPatterns of constructive and destructive interference are produced when two sources (or more) generate waves that combine together in such a manner as to cause either constructive or destructive effects.<\/p>\n<h4><\/h4>\n<h4><\/h4>\n<h4>Moving sources<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbdoppler.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-180\" alt=\"thumbdoppler\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbdoppler-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nSound sources moving towards an observer are perceived as having a higher frequency, and vice versa.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Superposition of waves Waves can be combined together in such a manner as to cause either constructive or destructive interference. Reflection One dimensional waves reflecting from boundaries can be decomposed into two component waves. The phase of the reflected wave depends on the kind of boundary. Three dimensional waves reflecting from boundaries create more complicated [&hellip;]<\/p>\n","protected":false},"author":75333,"featured_media":0,"parent":50,"menu_order":11,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-172","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/users\/75333"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/comments?post=172"}],"version-history":[{"count":7,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/172\/revisions"}],"predecessor-version":[{"id":339,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/172\/revisions\/339"}],"up":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/50"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/media?parent=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}