MCQOPTIONS
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				| 1. | 
                                    In p mode of operation of magnetron the spikes due to phase focussing effect rotate at an angular velocity corresponding to | 
                            
| A. | one pole/cycle | 
| B. | two pole/cycle | 
| C. | four pole/cycle | 
| D. | six pole/cycle | 
| Answer» C. four pole/cycle | |