MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Determine the periodicity and also find whether it is a power or energy signal? e(-at)u(t) |
| A. | Periodic and energy signal |
| B. | Non periodic and energy signal |
| C. | Periodic and power signal |
| D. | Periodic and energy signal |
| Answer» C. Periodic and power signal | |
| 2. |
Find the fundamental period of 1+sin^2 (3 /5)n. |
| A. | 10/3 |
| B. | 5 |
| C. | 3 /5 |
| D. | None of the mentioned |
| Answer» C. 3 /5 | |
| 3. |
Find the periodicity of the following signal. x(t)=cos((2 /7)t)sin((3 /5)t) |
| A. | 30 |
| B. | 7 |
| C. | 35 |
| D. | 5/3 |
| Answer» D. 5/3 | |
| 4. |
Check whether the signal is periodic or not?x(t) = cos(4t) + 2sin(8t) |
| A. | Periodic with period /2 |
| B. | Periodic with period 2 |
| C. | Periodic with period 2/ |
| D. | Not periodic |
| Answer» B. Periodic with period 2 | |