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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3014/CH1/EX1.32/Ex1_32.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3014/CH1/EX1.32/Ex1_32.sce')
| -rwxr-xr-x | 3014/CH1/EX1.32/Ex1_32.sce | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/3014/CH1/EX1.32/Ex1_32.sce b/3014/CH1/EX1.32/Ex1_32.sce new file mode 100755 index 000000000..98a97d20c --- /dev/null +++ b/3014/CH1/EX1.32/Ex1_32.sce @@ -0,0 +1,13 @@ +clc
+//Given that
+lambda = 2e-13 // de Broglie wavelength of an electron in m
+c = 3e8 // Speed of light in m/s
+m = 9.1e-31 // Mass of electron in Kg
+h = 6.63e-34 // Plank constant
+printf("Example 1.32")
+E = h*c/(lambda*1.6e-19)
+E_rest = m*c^2/(1.6e-19) // Calculation of rest mass energy
+E_total = sqrt(E^2+E_rest^2) // Total energy in eV
+v_g = c*sqrt(1-(E_rest/E_total)^2) // Group velocity
+v_p = c^2/v_g // Phase velocity
+printf("\n Group velocity of de Broglie waves is %fc and\n phase velocity is %fc .\n\n\n",v_g/c,v_p/c)
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