Question
Asked Nov 20, 2019
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Suppose you call your dog with an average intensity level of 80 decibels (db). How much more sound energy would you have to put into each call to:
a) Increase the call to 90 db?
b) Increase the call to 100 db?

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Expert Answer

Step 1

Intensity relation

80db 10logI80
=109%
90 db-10log
I90I0
90910
- 10
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80db 10logI80 =109% 90 db-10log I90I0 90910 - 10

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Step 2

Intensity and energy are proportional to each other

Hence energy and intensity are related as

E 10E
80
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E 10E 80

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Step 3

To increase ...

100-101010
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100-101010

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Science

Physics

Kinematics

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