1 files changed, 14 insertions, 0 deletions
diff --git a/1061/CH8/EX8.12/Ex8_12.sce b/1061/CH8/EX8.12/Ex8_12.sce
new file mode 100755
index 000000000..ade16e0df
--- /dev/null
+++ b/1061/CH8/EX8.12/Ex8_12.sce
@@ -0,0 +1,14 @@
+//Ex:8.12
+clc;
+clear;
+close;
+ni=0.09;// normal efficiency
+d=2*2.54;// separation distance in cm
+x=0.2;// divergence angle in radians
+vf=2.0;// forward voltage in volts
+i_f=65*10^-3;// forward current in amp
+pi=vf*i_f;// input power in Watt
+po=ni*pi;// output power in Watt
+H=4*po/(3.14*d^2*x^2);// irradiance in watt/cm^2
+H1=H*1000;// irradiance in mwatt/cm^2
+printf("The irradiance =%f mwatt/cm^2 ", H1);
+\ No newline at end of file