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Diffstat (limited to '3547/CH3/EX3.8')
| -rw-r--r-- | 3547/CH3/EX3.8/3_8.jpg | bin | 0 -> 55827 bytes | |||
| -rw-r--r-- | 3547/CH3/EX3.8/Ex3_8.sce | 22 |
2 files changed, 22 insertions, 0 deletions
diff --git a/3547/CH3/EX3.8/3_8.jpg b/3547/CH3/EX3.8/3_8.jpg Binary files differnew file mode 100644 index 000000000..f07a99fc0 --- /dev/null +++ b/3547/CH3/EX3.8/3_8.jpg diff --git a/3547/CH3/EX3.8/Ex3_8.sce b/3547/CH3/EX3.8/Ex3_8.sce new file mode 100644 index 000000000..3aece71ce --- /dev/null +++ b/3547/CH3/EX3.8/Ex3_8.sce @@ -0,0 +1,22 @@ +// Example no.3.8
+// To find the wavelength of the light emitted
+// Page no.133
+
+clc;
+clear;
+
+// Given data
+RspRst=2*10^14; // The ratio of spontaneous emission rate to stimulated emission rate
+T=30; // Temperature in degree celcius
+kB=1.38*10^(-23); // The Boltzmann’s constant J/K
+h=1.054*10^(-34); // The distance between two levels
+c=3*10^8; // Speed of ligth in air
+
+T=T+273; // Temperature in Kelvin
+w=(log(RspRst)*kB*T)/h; // Frequency in Rad
+
+// The wavelength of the light emitted
+lambda=(2*%pi*c)/w; // The wavelength of the light emitted
+
+// Displaying the result in command window
+printf('\n The wavelength of the light emitted = %0.2f micrometer',lambda*10^6);
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