<prompt> Sound reaches maximum amplitude depending on its frequency at:Tympanic membraneEar ossiclesSemicircular canalsB asilar membrane  <response>: Ref: Diseases of Ear, Nose Throat, by Dhingra 5th edition. Chapter on Physiology of EarExplanation:A sound wave depending on its frequency reaches maximum amplitude on a particular place on hasilar membrane and stimulates that segment.Higher frequencies are represented in the basal turn of cochlea and progressively lower ones towards the apex. 