Final answer:
The idea that two identical sound sources would sound twice as loud as one is false; doubling the intensity of a sound increases its level by about 3 dB due to the logarithmic nature of the decibel scale.
Step-by-step explanation:
The statement that two identical sound producers will sound twice as loud as just one is false.
The perception of loudness is not directly proportional to the number of sound sources. Given that sound intensity level is measured in decibels (dB), which is a logarithmic unit, doubling the intensity of a sound only increases its level by about 3 dB, not double the original dB level.
In physics, changing intensity levels of a sound demonstrate that if one sound is twice as intense as another, its sound level is about 3 dB higher.
This is because the decibel scale is logarithmic, meaning each increase of 10 dB represents a tenfold increase in intensity. For example, an 86 dB sound is twice as intense as an 83 dB sound. Therefore, adding another identical sound source will only increase the sound level slightly and not double the loudness.