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| author | priyanka | 2015-06-24 15:03:17 +0530 |
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| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1271/CH15/EX15.23/example15_23.sce | |
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diff --git a/1271/CH15/EX15.23/example15_23.sce b/1271/CH15/EX15.23/example15_23.sce new file mode 100755 index 000000000..81e5fcd9d --- /dev/null +++ b/1271/CH15/EX15.23/example15_23.sce @@ -0,0 +1,25 @@ +clc +// Given that +l = 10e-10 // width of box containing electron in m +E = 9.664e-17 // energy of electron in J +M = 0.001 // mass of glass marble in kg +l_ = 0.2 // width of box containing marble in m +e = 1.6e-19 // charge on an electron in C +m = 9.1e-31 // mass of electron in kg +c = 3e8 // speed of light in m/sec +h = 6.62e-34 // Planck constant in J-sec +// Sample Problem 23 on page no. 15.33 +printf("\n # PROBLEM 23 # \n") +printf("Standard formula used \n") +printf(" E = (n^2 * h^2) / (8 * m * L^2)) \n p_n = n*h/(2*pi) \n") +// For electron +n = 1 // for n=1 +E1 = (n^2 * h^2) / (8 * m * l^2) +E2 = 2^2* E1 +E3 = 3^2 * E1 +// For glass marble +E1_ = h^2/(8*M*l_^2) +E2_ = 2^2 * E1_ +E3_ = 3^2 *E1_ +printf("\n Energy levels of electron \n For (n=1) is %e J.\n For (n=2) is %e J.\n For (n=3) is %e J.\n Energy levels of marble \n For (n=1) is %e J.\n For (n=2) is %e J.\n For (n=3) is %e J.",E1,E2,E3,E1_,E2_,E3_) +printf("\n It is clear that the levels in case of marble are very small and are nearly zero. So it is not possible to measure them experimentally.") |