diff options
Diffstat (limited to '3717/CH2/EX2.2/Ex2_2.sce')
| -rw-r--r-- | 3717/CH2/EX2.2/Ex2_2.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/3717/CH2/EX2.2/Ex2_2.sce b/3717/CH2/EX2.2/Ex2_2.sce new file mode 100644 index 000000000..fc7cbea66 --- /dev/null +++ b/3717/CH2/EX2.2/Ex2_2.sce @@ -0,0 +1,18 @@ +// Ex2_2 Page:31 (2014)
+clc; clear;
+h = 6.626e-034; // Planck's constant, Js
+c = 3e+08; // Speed of light, m/s
+e = 1.6e-019; // Energy equivalent of 1 eV, J
+m = 9.1e-031; // Mass of an electron, kg
+w0 = 2.28; // Work function of sodium, eV
+lambda = 400e-09; // Wavelength of light, m
+nu = c/lambda; // Frequency of light, Hz
+KE_max = h*nu/e - w0; // Maximum kinetic energy of photoelectrons, eV
+v = sqrt(2*KE_max*e/m); // Speed of photoelectrons, m/s
+printf("\nThe maximum kinetic energy of photoelectrons = %5.3f eV", KE_max);
+printf("\nThe speed of photoelectrons = %4.2e m/s", v);
+
+// Result
+// The maximum kinetic energy of photoelectrons = 0.826 eV
+// The speed of photoelectrons = 5.39e+05 m/s
+
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