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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 /284/CH1/EX1.4 | |
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initial commit / add all books
Diffstat (limited to '284/CH1/EX1.4')
| -rwxr-xr-x | 284/CH1/EX1.4/ex_4.sce | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/284/CH1/EX1.4/ex_4.sce b/284/CH1/EX1.4/ex_4.sce new file mode 100755 index 000000000..70c0ed544 --- /dev/null +++ b/284/CH1/EX1.4/ex_4.sce @@ -0,0 +1,12 @@ +// Chapter 1_Principles of Quantum Mechanics
+//Caption_Penetration depth of a particle impinging on a potential barrier
+//Ex_4//page 18
+v=10^5; // Given velocity of electron
+m=9.11*(10^-31); // mass of electron
+c=1.6*(10^-19)
+E=((1/2)*m*(v^2))/c;
+VO=2*E; //Assume that the potential barrier at x=0 is twice as large as total energy of the incident particle
+printf('Energy of the particle is %fd eV\n' ,E)
+h=1.054*(10^-34)
+d=((h^2)/(2*m*E*c))^(1/2)*10^10;
+printf('The distance at which the wave funciton magnitude has decayed to e^-1 of its value at x=0 is %2.1f Angstrom \n',d )
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