1 files changed, 14 insertions, 0 deletions
diff --git a/1694/CH2/EX2.40/EX2_40.sce b/1694/CH2/EX2.40/EX2_40.sce
new file mode 100644
index 000000000..87f269ab5
--- /dev/null
+++ b/1694/CH2/EX2.40/EX2_40.sce
@@ -0,0 +1,14 @@
+clear;
+clc;
+printf("\nEx2.40\n");
+//page no.-86
+//given
+h=6.62*10^-27;..........//planck's constant in ergs-sec
+m=9.11*10^-28;.........//mass of electron in gm
+e=4.803*10^-10;...........//charge
+V=1/3;..................//potential difference in e.s.u.
+//AS V*e=m*v^2/2, put into lambda=h/m*v
+
+lambda=h/sqrt(2*V*e*m)..........//wavelength in cm
+
+printf("\nwavelength is 1.226*10^8 cm\n");