MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the field strength at receiving antenna is 1 µV/m, and the effective aperture area is 0.4 m2 and the intrinsic impedance of the medium is 377 Ω, then the power received by the antenna is: |
| A. | 1.06 pW |
| B. | 1.06 fW |
| C. | 2 µW |
| D. | None of the mentioned |
| Answer» C. 2 µW | |
| 2. |
A source with a unidirectional cosine squared radiation intensity pattern is given by UMcos2 (θ). The directivity of the given source is: |
| A. | 6 |
| B. | 8 |
| C. | 2 |
| D. | 7 |
| Answer» B. 8 | |
| 3. |
A source has a radiation intensity pattern given by U=UM sin θ. The directivity of the source with this power pattern is: |
| A. | 1 |
| B. | 1.27 |
| C. | 2.4 |
| D. | 3.4 |
| Answer» C. 2.4 | |
| 4. |
A source has a cosine radiation-intensity pattern given by U=UM cos (θ). The directivity of this source is: |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 5. |
The expression for pointing vector of an isotropic point source at a distance ‘r’ from the source is given by: |
| A. | P/ 4πR2 |
| B. | P/4π |
| C. | P/ 4πR |
| D. | P×4πR2 |
| Answer» B. P/4π | |