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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2414/CH17/EX17.3 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2414/CH17/EX17.3')
| -rwxr-xr-x | 2414/CH17/EX17.3/Ex17_3.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/2414/CH17/EX17.3/Ex17_3.sce b/2414/CH17/EX17.3/Ex17_3.sce new file mode 100755 index 000000000..85231bb08 --- /dev/null +++ b/2414/CH17/EX17.3/Ex17_3.sce @@ -0,0 +1,17 @@ +clc;
+close();
+clear();
+//page no 552
+//prob no. 17.3
+c=3*10^8; //speed of light in m/s
+f=3.7*10^9; //Hz
+lembda=c/f; //m
+mprintf('The wave length is %.4f cm \n',lembda*100)
+theta_3dB=8; //degree
+D=70*lembda/theta_3dB //m
+mprintf('The diameter is, D= %.4f m \n',D);
+eta_1=.6; //illumination efficiency
+G=eta_1*(%pi*D/lembda)^2; //gain calculation
+mprintf('The Gain is G= %.2f \n',G)
+G_dB=10*log10(G); //dB gain
+mprintf('The Gain in dB is G(dB)= %.3f dB \n',G_dB)
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