1 files changed, 13 insertions, 0 deletions
diff --git a/1694/CH2/EX2.9/EX2_9.sce b/1694/CH2/EX2.9/EX2_9.sce
new file mode 100644
index 000000000..bf74e32ff
--- /dev/null
+++ b/1694/CH2/EX2.9/EX2_9.sce
@@ -0,0 +1,13 @@
+clear;
+clc;
+printf("\nEx2.9\n");
+//page no.-58
+//given
+m=9.1*10^-28;..........//mass of electron in gm
+e=4.8*10^-10;.............//charge in e.s.u.
+h=6.62*10^-27;.............//planck's constant in erg-sec
+V=28.8;....................//potential diff. in volt
+
+lambda=h*sqrt(150/(m*e*V)).............//wavelength in cm
+
+printf("\nde-Broglie wavelength is 2.3 angstrom\n");