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//calculation of frequency of a wave
clear;
clc;
printf("\t Example 7.2\n");
lambda=522*10^-9;//wavelength, m
c=3*10^8;//speed of light in vacuum, m/s
v=c/lambda;//frequency, Hz
printf("\t the frequency of the wave is : %4.2f *10^14 Hz\n",v*10^-14);
//End
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