[Solved] Which of the following is an advantage of using a focused transducer?

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Q.	Which of the following is an advantage of using a focused transducer?
A.	The useful range of the transducer is decreased
B.	The useful range of the transducer is increased
C.	Sensitivity to the effects of a rough surface is increased
D.	Greater sensitivity is achieved in the transducer's useable range
Answer» D. Greater sensitivity is achieved in the transducer's useable range

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