MCQOPTIONS
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MCQOPTIONS
| 1. |
For a rectangular aperture of a*b the first null in E-plane occur at _______ |
| A. | sin<sup>-1</sup> u2061( /b) |
| B. | sec<sup>-1</sup> u2061( /b) |
| C. | cos<sup>-1</sup> u2061( /a) |
| D. | sin<sup>-1</sup> u2061( /a) |
| Answer» B. sec<sup>-1</sup> u2061( /b) | |