Consider two different sounds, let us compare the intensity of these sounds. A 8
ID: 2032647 • Letter: C
Question
Consider two different sounds, let us compare the intensity of these sounds. A 80dB sound and a 30dB sound. Do this in factors of 10. How many times greater is the 80dB compared to the 30dB?Consider two different sounds, let us compare the intensity of these sounds. A 80dB sound and a 30dB sound. Do this in factors of 10. How many times greater is the 80dB compared to the 30dB?
Consider two different sounds, let us compare the intensity of these sounds. A 80dB sound and a 30dB sound. Do this in factors of 10. How many times greater is the 80dB compared to the 30dB?
Explanation / Answer
The answer is 100000 times more powerful. Every 10 dB is a factor of 10 multiplier of power.
Note that “deci” means 1/10th. So 10 dB is 1 B = 1 bel = a factor 10.
80 dB - 30 dB = 50 dB = 5 B = 5 factors of 10, or 10x10x10x10x10 = 100000.