In ultrasonic welding the frequency range is generally
A. 2000 to 3000 Hz
B. 4000 to 20000 Hz
C. 30000 to 40000 Hz
D. 50000 to 80000 Hz
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Answer: B
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In ultrasonic welding the frequency range is generally
A. 2000 to 3000 Hz
B. 4000 to 20000 Hz
C. 30000 to 40000 Hz
D. 50000 to 80000 Hz
Answer: B
Share your understanding of this question with the correct explanation.