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//Example 4.2, Page number 4.32
clc;clear;close
// variable declaration
C=3*10**8 // The speed of light
Lamda=6943 // Wavelength
T=300 // Temperature in Kelvin
h=6.626*10**-34 // Planck constant
k=1.38*10**-23 // Boltzmann's constant
// Calculations
V=(C)/(Lamda*10**-10) // Frequency
R=exp(h*V/(k*T)) // Relative population
// Result
printf("Frequency (V) = %0.2e Hz",V)
printf("\nRelative Population = %.3e",R)
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