 
			 
			MCQOPTIONS
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				| 1. | The frequency f1 and f2 from the below picture are respectively called ___________ | 
| A. | lower cut-off frequency and upper cut-off frequency | 
| B. | upper cut-off frequency and lower cut-off frequency | 
| C. | left frequency, right frequency | 
| D. | there is no specific name | 
| Answer» B. upper cut-off frequency and lower cut-off frequency | |