diff options
Diffstat (limited to '3875/CH7/EX7.4/Ex7_4.sce')
| -rw-r--r-- | 3875/CH7/EX7.4/Ex7_4.sce | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/3875/CH7/EX7.4/Ex7_4.sce b/3875/CH7/EX7.4/Ex7_4.sce new file mode 100644 index 000000000..6300fefd6 --- /dev/null +++ b/3875/CH7/EX7.4/Ex7_4.sce @@ -0,0 +1,14 @@ +clc;
+clear;
+lambda=694.3*10^-9 //wavelength in m
+K_b=1.38*10^-23 //Boltzmann constant J/K
+T=300 //Temperature in K
+h=6.63*10^-34 //Plancks constant in J-s
+c=3*10^8 //velocity of light in m/s
+
+//calculation
+
+N1_by_N2=exp(-(h*c)/(lambda*K_b*T))
+
+mprintf("The ratio of population of two energy levels N1/N2 is = %1.2e",N1_by_N2)
+//The answer provided in the textbook is wrong.
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