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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Signals & Systems knowledge and support exam preparation. Choose a topic below to get started.
1. |
What are the types of symmetry shown by signals? |
A. | Even symmetry and odd symmetry |
B. | Even, odd and quarter wave symmetry |
C. | Even, odd, half-wave and quarter wave symmetry |
D. | Half wave symmetry |
Answer» D. Half wave symmetry | |
2. |
When does a wave posses a quarter wave symmetry? |
A. | It has either even or odd symmetry |
B. | It has half wave symmetry |
C. | even/odd symmetry and half wave symmetry |
D. | It is even in one quarter and odd in the other |
Answer» D. It is even in one quarter and odd in the other | |
3. |
How can we define the coefficients a half wave symmetry when n is even? |
A. | a<sub>n</sub>=0 and b<sub>n</sub>=0 and a<sub>0</sub>=0 |
B. | a<sub>n</sub>=4/T x(t)cos(nwt)dt and b<sub>n</sub>=0= a<sub>0</sub> |
C. | a<sub>n</sub>=4/T x(t)sin(nwt)dt and b<sub>n</sub>=4/T x(t)cos(nwt)dt and a<sub>0</sub>=0 |
D. | a<sub>n</sub>=4/T x(t)sin(nwt)dt and b<sub>n</sub>=4/T and a<sub>0</sub>=0 |
Answer» D. a<sub>n</sub>=4/T x(t)sin(nwt)dt and b<sub>n</sub>=4/T and a<sub>0</sub>=0 | |
4. |
What is the function of an odd signal? |
A. | x(t) = -x(t) |
B. | x(t) = x(-t) |
C. | x(t) = -x(-t) |
D. | x(t) = x(t+1) |
Answer» B. x(t) = x(-t) | |