1 files changed, 15 insertions, 0 deletions
diff --git a/3701/CH2/EX2.12/Ex2_12.sce b/3701/CH2/EX2.12/Ex2_12.sce
new file mode 100644
index 000000000..709470a65
--- /dev/null
+++ b/3701/CH2/EX2.12/Ex2_12.sce
@@ -0,0 +1,15 @@
+////given
+V1=.82                                            //volts
+V2=1.85                                           //volts
+lembda1=4.0*10**-7                                //m
+lembda2=3.0*10**-7
+e=1.6*10**-19
+c=3.0*10**8                                     //m/s
+
+//Calculation
+lembda=(1/lembda2)-(1/lembda1)
+h=(e*(V2-V1))/(c*lembda)
+
+//Result
+printf("\n (a) planks constant  %e Js",h)
+printf("\n (b) no, because the stopping potential depends only on the wavelength of light and not on its intensity.")