MCQOPTIONS
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				| 1. | 
                                    The transfer function H(s) of a system is given by following equation. Given that understeady state conditions, the sinusoidal I/P and 0/P are respectively x(t) = cos 2t and y(t) = cos (2t + Φ), then the angle Φ will be | 
                            
| A. | 45° | 
| B. | 0° | 
| C. | -45° | 
| D. | -90° | 
| Answer» D. -90° | |