The relationship between number of decibels B and intensity of sound I in watts per square meter is
B=10 log (I/(10to power of -12))
a) Find number of decibels of sound with the intensity of 1 watt per square meter.
b) Find number of decibels of sound with intensity of (10 to power of -12) watt per square meter.
c) Intensity of sound in part (a) is 100 times as great as that in part (b). Is number of decibels 100 times as great? Describe.