A microphone and an amplifier with a loudspeaker does this. The microphone converts the soundpressure to electric signals. The amplifier amplifies these signals and the loudspeaker converts back the electric signals to sound pressure. Our ear drums are moved by the sound pressure as a sound field quantity. It is not the sound intensity as an energy quantity.
Nine times weaker. Sound intensity decreases by the square of the distance from the source, so moving the surface three times farther away decreases the intensity by (3)^2 = 9 times.
The distance must be doubled to reduce the sound intensity by half. This follows the inverse square law, which states that sound intensity decreases in proportion to the square of the distance from the source.
The power in the wave is [ 30 dB = 1,000 times ] greater.
A sound wave with an intensity of 83 dB is about 8 times louder than a sound wave with an intensity of 70 dB. This is because the decibel scale is logarithmic, and every increase of 10 dB represents a sound wave that is 10 times more intense.
The difference in sound intensity between the orchestra and the soloist is 20 dB. Since the decibel scale is logarithmic, a 10 dB increase represents a doubling of sound intensity. Therefore, the orchestra is 100 times louder than the soloist.
Nine times weaker. Sound intensity decreases by the square of the distance from the source, so moving the surface three times farther away decreases the intensity by (3)^2 = 9 times.
The distance must be doubled to reduce the sound intensity by half. This follows the inverse square law, which states that sound intensity decreases in proportion to the square of the distance from the source.
If the energy carried by a sound wave is multiplied by a thousand times, the intensity of the sound wave increases by a million times. This is because intensity is directly proportional to the square of the amplitude of the wave, so increasing the energy by a factor of 1000 results in a 1000^2 = 1,000,000 increase in intensity.
100 times. Each bel (10 decibels) is ten times as loud thus 20 to 40 is 100 times.
The power in the wave is [ 30 dB = 1,000 times ] greater.
The intensity of sound produced by a choir compared to a soloist can vary, but generally, a full 10-person choir can be approximately 10 times more intense than a soloist. This is due to the combined vocal power and resonance of multiple singers, which amplifies the sound. However, the perceived intensity can also depend on factors like blending, dynamics, and acoustics of the space.
A sound wave with an intensity of 83 dB is about 8 times louder than a sound wave with an intensity of 70 dB. This is because the decibel scale is logarithmic, and every increase of 10 dB represents a sound wave that is 10 times more intense.
The intensity of a 40 decibel sound is 10 times greater than that of a 20 decibel sound. This is because the decibel scale is logarithmic, with each 10 decibel increase representing a 10-fold increase in intensity. Therefore, a sound that is 40 decibels is 10 times more intense than a sound that is 20 decibels.
The difference in sound intensity between the orchestra and the soloist is 20 dB. Since the decibel scale is logarithmic, a 10 dB increase represents a doubling of sound intensity. Therefore, the orchestra is 100 times louder than the soloist.
The orchestra is 10 times louder than the soloist because each increase of 10 decibels corresponds to a tenfold increase in sound intensity.
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.
the sound intensity is measured in work /m .that means , si unit of sound intensity is decibel ( db) .