1.

What is the radiation intensity for isotropic antenna having radiation power density ( frac{3 sin }{r^2}a_r W/m^2 )?

A. 3sin a<sub>r</sub> W/Steradian
B. 3cos a<sub>r</sub> W/Steradian
C. 6 sin a<sub>r</sub> W/Steradian
D. 6 cos a<sub>r</sub> W/steradian
Answer» B. 3cos a<sub>r</sub> W/Steradian


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