MCQOPTIONS
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| 1. |
Let a signal a1 sin (ω1 t + φ1) be applied to an astable LTI system. The corresponding output is a2 F sin (ω2 t + φ2). Then which of the following is correct? |
| A. | F is not necessarily a sine or cosine function but must be periodic with ω1=ω2 |
| B. | F must be a sine or cosine function with a1 = a2 |
| C. | F must be a sine function with ω1=ω2 and φ1 = φ2 |
| D. | F must be a sine or cosine function with ω1=ω2 |
| Answer» C. F must be a sine function with ω1=ω2 and φ1 = φ2 | |