Question

An opera singer produces a decibel level of 109 dB at a distance of 0.400 m.The area of a typical eardrum is about 5.00 ✕ 10⁻⁵ m².mAssume the sound propagates as a spherical wave. Determine the sound intensity I and power P incident on a typical eardrum at distances of 3.00 m and 21.0 m from the singer.

ADDITIONAL PROBLEMS An opera singer produces a decibel level of 109 dB at a distance of 0.400 m. The area of a typical eardrum is about 5.00 × 10-5 m2. Assume the sound propagates as a spherical wave. Determine the sound intensity I and power P incident on a typical eardrum at distances of 3.00 m and 21.0 m from the singer (a) 3.00 m from the singer W/m2 (b) 21.0 m from the singer 1= W/m2

Answer 1

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