MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Marconi antenna ________ |
| A. | is a grounded antenna |
| B. | is an ungrounded antenna |
| C. | can either be grounded or ungrounded antenna |
| D. | can neither be grounded nor ungrounded antenna |
| Answer» B. is an ungrounded antenna | |
| 2. |
In a Vidicon camera tube, the side of target plate facing the light has a coating of Sno2 (tin oxide) and the side facing electron gun has a coating of antimony trisulphide. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
For a human eye the minimum viewing angle of resolution should be D where D is iris opening and is wavelength of light. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The rms value of a thermal noise voltage is proportional to (where k is Boltzmann s constant) _______ |
| A. | k |
| B. | k |
| C. | k<sup>2</sup> |
| D. | k<sup><sup>1</sup> <sub>3</sub></sup> |
| Answer» B. k | |