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A loudspeaker is placed between two observers who are 125 apart, alonq the line connecting them. If one observer (observer A) records a sound level of 55 dB and the other (observer B) records a sound level of 85 dB, how far is the speaker from each observer? m (from observer A) m (from observer B)

Respuesta :

Answer:

Explanation:

55dB = 5.5 B

85 dB = 8.5 B

For observer A  intensity of sound  I(A) = 10⁵°⁵ unit

For observer B intensity of sound I(B) = 10⁸°⁵.unit

If distance be d₁ for A and d₂ for B

d₁ ²/ d₂²  = 10⁸⁰⁵/10⁵°⁵

= 10³

d₁/d₂ = 31.62 , d₁ + d₂ = 125 m

d₁ =( 125/32.62)  x 31.62 =121.17 m

d₂ = 3.83 m                          

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