- #1
slaw155
- 41
- 0
What decibel increase does a hearing aid produce if its sound gathering area is 900cm^2, the area of the eardrum is 0.5cm^2, but it only has an efficiency of 5% in transmitting sound to the eardrum?
I know sound level = 10log(final intensity/initial intensity), but we've only been given areas, so I don't know how to convert these into intensities to find change in sound level?
I know sound level = 10log(final intensity/initial intensity), but we've only been given areas, so I don't know how to convert these into intensities to find change in sound level?