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The Human EardrumThe radius of a typical human eardrum is
Chapter 14, Problem 40P(choose chapter or problem)
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.
Questions & Answers
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