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The Human EardrumThe radius of a typical human eardrum is

Chapter 14, Problem 40P

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QUESTION:

Problem 40P

The Human EardrumThe radius of a typical human eardrum is about 4.0 mm. Find the energy per second received by aneardrumwhen it listens to sound that is (a) at the threshold of hearing and (b) at the threshold of pain.

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QUESTION:

Problem 40P

The Human EardrumThe radius of a typical human eardrum is about 4.0 mm. Find the energy per second received by aneardrumwhen it listens to sound that is (a) at the threshold of hearing and (b) at the threshold of pain.

ANSWER:

a.)

Step 1 of 3

We have to find the energy per second received by an ear drum when it listens to sound that is at the threshold of hearing.

The energy per second received by the ear drum can be found from the expression for the intensity of sound wave.

Where,

intensity of threshold

      of hearing = 10-12 W/m2

Area of the eardrum in m2

Energy per second in W

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