(Microsoft PowerPoint - E44SL-CM3 [Mode de compatibilit\351])
(Microsoft PowerPoint - E44SL-CM3 [Mode de compatibilit\351])
(Microsoft PowerPoint - E44SL-CM3 [Mode de compatibilit\351])
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5) La résonance acoustique<br />
• Notion <strong>de</strong> phase<br />
– On<strong>de</strong>s en opposition <strong>de</strong> phase (180°<strong>de</strong><br />
déphasage) : on<strong>de</strong> résultante = on<strong>de</strong> <strong>de</strong><br />
pression nulle .<br />
+<br />
=