Due to a point isotropic sound source, the sound level at a point is o

1.	Due to a point isotropic sound source, the sound level at a point is observed as 40 dB. The density of air is ρ = 1511kg/m3 and velocity of sound in air is 330 m/s. (The threshold intensity is 10−12Wm2) The pressure amplitude at the observation point is x(10−3)N/m2. Then x = _____
Answer» Due to a point isotropic sound source, the sound level at a point is observed as $40 d B$ . The density of air is $ρ$ = $\frac{15}{11} k g / m^{3}$ and velocity of sound in air is $330 m / s$ . (The threshold intensity is $10^{- 12} \frac{W}{m^{2}}$ ) The pressure amplitude at the observation point is $x (10^{- 3}) N / m^{2}$ . Then $x$ = _____

Due to a point isotropic sound source, the sound level at a point is observed as 40 dB. The density of air is ρ = 1511kg/m3 and velocity of sound in air is 330 m/s. (The threshold intensity is 10−12Wm2) The pressure amplitude at the observation point is x(10−3)N/m2. Then x = _____

Answer»

Due to a point isotropic sound source, the sound level at a point is observed as $40 d B$ . The density of air is $ρ$ = $\frac{15}{11} k g / m^{3}$ and velocity of sound in air is $330 m / s$ . (The threshold intensity is $10^{- 12} \frac{W}{m^{2}}$ )

The pressure amplitude at the observation point is $x (10^{- 3}) N / m^{2}$ . Then $x$ = _____

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Due to a point isotropic sound source, the sound level at a point is observed as 40 dB. The density of air is ρ = 1511kg/m3 and velocity of sound in air is 330 m/s. (The threshold intensity is 10−12Wm2) The pressure amplitude at the observation point is x(10−3)N/m2. Then x = _____

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