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    Amongst which of the following types of directivities of loudspeakers are frequently employed where sound must be focused in a specific zone?
    
    
    
	46. Amongst which of the following types of directivities of loudspeakers are frequently employed where sound must be focused in a specific zone?
    
      - Unidirectional
- Omnidirectional
- Bipolar
- Horn-loaded
Answer: A) Unidirectional
    Explanation:
    Unidirectional speakers are frequently employed in circumstances where sound must be focused in a specific zone.