ISRO Scientist or Engineer Electronics 2010 Question 70

Question 70

The maximum range of a monostatic Radar is R. If a target having a Radar cross section of $$10m^{2}$$ exists at $$\frac{R}{2}$$ what should be the target cross-section at $$\frac{3R}{2}$$ to result in an equalsignal strength at the Radar?



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