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How does the intensity of a 40-decibel sound compare to the intensity of a 20-decibel sound?
Wiki User
∙ 12y ago
Given: Sound intensity level LI1 = 40 dB and sound intensity level LI2 = 20 dB.
Reference sound intensity Io = 10^−12 W/m² (Threshold of hearing)
Reference sound intensity level LIo = 0 dB-SIL (Threshold of hearing level)
Get sound intensity I1 when entering sound intensity level LI1 = 40 dB:
Sound intensity I1 = Io×10^(LI/10) W/m² = 10^−12×10^(40/10) = 0.00000001 W/m² = 10^−8 W/m².
Get sound intensity I2 when entering sound intensity level LI2 = 20 dB:
Sound intensity I2 = Io×10^(LI/10) W/m² = 10^−12×10^(20/10) = 0.0000000001 W/m² = 10^−10 W/m².
The sound intensity I1 = 10^−8 W/m² is 100 times more than the sound intensity I2 = 10^−10 W/m².
The sound intensity level LI1 = 40 dB is 20 dB more than the sound intensity level LI2 = 20 dB.
Wiki User
∙ 12y ago
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Sound intensity decreases when what decreases?
Sound intensity decreases when amplification (volume) decreases.
What describes the intensity of sound?
Sound intensity or acoustic intensity is defined as the sound per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity.
What is intensity in sound?
Sound intensity (I) is a sound energy quantity in oposite to sound pressure (p), which is a sound field quantity. I = p². Sound intensity or acoustic intensity I is defined as the sound power Pac per unit area A. That is: I = Pac / A. The usual context is the noise measurement of sound intensity in the air at a listener's location.
How do the amplitudes of a decibel sound and a 100-decibel sound compare?
The power or intensity of the louder one is 10 billion times the power or intensity of the softer one. Since the power or intensity is typically proportional to the square of the wave amplitude, the amplitude of the louder one is a mere 100,000 times the amplitude of the softer one.
What are variations in sound intensity?
The loudness has to do with the sound field quantity called sound pressure or sound pressure level (SPL). The sound intensity or acoustic intensity means the sound energy quantity. Our ears and the microphone diaphragms are moved by the sound pressure variations.
Compare and conyrast loudness and intensity?
Sound intensity or acoustic intensity can be calculated from the objective measurement of the sound pressure. The loudness is a psycho-acoustic subjective feeling, which is difficult to measure.
How does the intensity of a 40-decibel sound compare to the intensity 20-decibel sound?
100 times. Each bel (10 decibels) is ten times as loud thus 20 to 40 is 100 times.
Compare and Contrast the sound waves produced by someone whispering and someone shouting?
The difference is that someone whispering has a lower intensity and someone shouting has a higher intensity.
Compare and contrast the sound waves produced by someone whispering and someone shouting .?
The difference is that someone whispering has a lower intensity and someone shouting has a higher intensity.
Is intensity a property of sound?
Sound intensity is a property of sound.
What is the name of sound intensity?
Sound intensity is mesured in decibels !
Sound intensity decreases when what decreases?
Sound intensity decreases when amplification (volume) decreases.
Intensity of a sound?
Sound intensity or acoustic intensity(I) is defined as the sound power Pacper unit area A. The usual context is the noise measurement of sound intensity in the air at a listener's location.
What is intensity of sound?
The sound intensity I or acoustic intensity is defined as the sound power per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location.
What describes the intensity of sound?
Sound intensity or acoustic intensity is defined as the sound per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity.
What is intensity in sound?
Sound intensity (I) is a sound energy quantity in oposite to sound pressure (p), which is a sound field quantity. I = p². Sound intensity or acoustic intensity I is defined as the sound power Pac per unit area A. That is: I = Pac / A. The usual context is the noise measurement of sound intensity in the air at a listener's location.
What is the meaning of intensity in sound?
The sound intensity I or acoustic intensity is defined as the sound power per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location.
