1.

Effective aperture in terms of beam area and operating wavelength is given by the relation:

A. λ<sup>2</sup>/ ΩA
B. ΩA / λ<sup>2</sup>
C. λ<sup>2</sup>× ΩA
D. No such relationship exists
Answer» B. ‚âà√≠¬¨¬©A / ‚âà√≠¬¨‚Ñ¢<sup>2</sup>


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