Question

write the unit to measure the sound intensity ​

Answer 1

বলল না...................

Answer 2

ANSWER:

The unit in general use is the decibel (abbreviated db), equal to 0.1 bel. Thus the equation for relative intensities b in decibels may be written b = 10 log10 (I/I0). It may be calculated from this equation that one decibel corresponds to a 26 percent change in intensity.