Ultrasound has frequency of vibration
A 20000Hz
B. Above 20000Hz
C. Below 20000Hz
D. B/w. 20-20000Hz
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5
Ultrasound. The range of human hearing is about 20 Hz to 20,000 Hz. Ultrasound waves have frequencies above about 20,000 Hz (which is 20 kHz). As this is above the normal hearing range for humans, we cannot hear ultrasound.
B
B
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3
Ultrasound has frequency of vibration Above 20000Hz
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