For some classes of hearing impairment, a regular hearing-aid cannot be used but instead a bone-conduction hearing aid i

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For Some Classes Of Hearing Impairment A Regular Hearing Aid Cannot Be Used But Instead A Bone Conduction Hearing Aid I 1 (24.26 KiB) Viewed 17 times

For some classes of hearing impairment, a regular hearing-aid cannot be used but instead a bone-conduction hearing aid is useful. A bone-conduction hearing aid transmits sound through the cranial bones to the inner ear. If bone conducts sound waves at a speed of 2500 ms-, what is the wavelength of the wave in the bone when conducting a sound of frequency 15 000 Hz (in m)? (A) 0.045 (B) 0.17 (C) 0.33 (D) 0.78 (E) 1.3