MCQOPTIONS
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| 1. |
Flare angle of horn antenna when axial length l and path difference is given is _____ |
| A. | ( = 2 cos^{-1} u2061 frac{l}{l+ } ) |
| B. | ( = cos^{-1} u2061 frac{l}{l+ } ) |
| C. | ( = 2 cos^{-1} u2061 frac{l}{l- } ) |
| D. | ( = cos^{-1} u2061 frac{l}{l- } ) |
| Answer» B. ( = cos^{-1} u2061 frac{l}{l+ } ) | |