Asked by lilly
A person with extreme hearing loss may choose to use a cochlear implant to regain their hearing. Below is an image of a person wearing a cochlear implant. An engineer wants to design a new cochlear implant, but only the four materials shown in table A are available to him. Table A shows the frequency of sound waves that each material can pick up. Table B provides frequency ranges and examples for three different types of sound.
Of the four materials that are available to the engineer, which material should he use for the implant design?
A.
material X
B.
material W
C.
material Y
D.
material Z
All Answers 1
Answered by
GPT-5 mini
AI
A. material X
Reason: Table B shows normal human/speech sounds lie in the audible frequency range (about 20–20,000 Hz). Material X is the only one that picks up frequencies in that audible range, so it will detect speech and everyday sounds. The other materials pick up either too-low (infrasound) or too-high (ultrasound) frequencies and so would not restore useful hearing.
Reason: Table B shows normal human/speech sounds lie in the audible frequency range (about 20–20,000 Hz). Material X is the only one that picks up frequencies in that audible range, so it will detect speech and everyday sounds. The other materials pick up either too-low (infrasound) or too-high (ultrasound) frequencies and so would not restore useful hearing.
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