diff options
Diffstat (limited to '1694/CH1/EX1.28/EX1_28.sce')
| -rw-r--r-- | 1694/CH1/EX1.28/EX1_28.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/1694/CH1/EX1.28/EX1_28.sce b/1694/CH1/EX1.28/EX1_28.sce new file mode 100644 index 000000000..f85b4d8d0 --- /dev/null +++ b/1694/CH1/EX1.28/EX1_28.sce @@ -0,0 +1,20 @@ +clear;
+clc;
+printf("\nEx1.28\n");
+//page no.-36
+//given
+E=3.76*10^-17;............//kinrtic energy of e- in joule
+n=1;......................//order
+theta=9.20694;............//glancing angle
+h=6.625*10^-34;...........//planck constant
+m=9.1*10^-31;...........//mass of electron
+//from de-broglie relationship
+
+lambda=h/sqrt(2*m*E).......//wavelength
+
+//from bragg's law
+
+d=(n*lambda)/(2*sind(theta)).........//interplanar spacing in m
+
+printf("\ninterplanar spacing is 2.52 angstrom\n");
+
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