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//developed in windows XP operating system 32bit
//platform Scilab 5.4.1
clc;clear;
//example 16.9w
//calculation of the factor by which the pressure amplituide increases
//given data
n=30//increase(in dB) of the sound level
//calculation
//m = I2/I1 = intensity ratio
m=10^(n/10)
//since p2/p1 = sqrt(I2/I1)
f=sqrt(m)//require factor
printf('the factor by which the pressure amplituide increases is %d',round(f))
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