An ultrasound equipment works at frequency
A. Higher than 20,000 Hz
B. Higher than 10,000 Hz
C. Lower than 20,000 Hz
D. Lower than 10,000 Hz
Answer:C
An ultrasound equipment works at frequency
A. Higher than 20,000 Hz B. Higher than 10,000 Hz C. Lower than 20,000 Hz D. Lower than 10,000 Hz