A Person Stands Between Two Speakers Driven by the Same

question 73

Multiple Choice

A person stands between two speakers driven by the same source.Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s.The person is 1.65 m from one speaker and 4.95 m from the other.What type of interference does the person perceive?

• A)constructive
• B)destructive
• C)both constructive and destructive
• D)neither constructive nor destructive

---

Definitions:

Oval Window

A membrane-covered opening at the base of the stapes bone in the middle ear that transfers sound vibrations to the cochlea.

Basilar Membrane

A membrane in the cochlea of the inner ear that vibrates in response to sound and whose vibrations lead to activity in the auditory pathways of the brain.

Middle Ear

The part of the ear between the eardrum and the oval window that contains three small bones which transmit sound vibrations.

Dichromat

An individual with dichromacy, a form of color blindness where one has difficulty distinguishing certain colors due to the absence or malfunction of one of the three types of cone cells in the eyes.