A person wears a hearing aid, which makes a sounds louder by 10 dB?

A person wears a hearing aid, which makes a sounds louder by 10 dB?

asked:


This means the sound intensity is increased ……….. times.
This means the amplitude of the soundwave is increased ……………times.

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This entry was posted on Sunday, June 28th, 2009 at 2:24 pm and is filed under Physics. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

5 Responses to “A person wears a hearing aid, which makes a sounds louder by 10 dB?”

1. jadedheart Says:
   June 29th, 2009 at 7:08 am

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   increased by 10 db

2. Andy M Says:
   July 1st, 2009 at 5:54 am

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   10 dB = 10^10 = 10,000,000,000

   This means the sound intensity is increased …..10^10…… times.
   This means the amplitude of the soundwave is increased ……..10^10…….times.

   I don’t know much about hearing loss, but based on the numbers, this person seems to be quite deaf!

3. islandgrl Says:
   July 3rd, 2009 at 10:40 am

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   I= 10^ (10/10) = 10 times
   A = sqrt(ans above) = sqrt(10) = 3.16

4. Louloute Ministre Désinformation Says:
   July 3rd, 2009 at 8:24 pm

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   10db = 10 log(Po/Pi)

   Log (Po/Pi) = 10/10 = 1

   Po/Pi = 10 power 1

   Po/Pi = 10

   Po = 10 Pi

   10db = 20 log (Uo/Ui)

   Log (Uo/Ui) = 0.5

   Uo/Ui = 10 power 0.5 = 3.16

   Uo = 3.16 Ui

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   July 5th, 2009 at 8:41 am

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