Vibrations of frequency between 20Hz to 20,000 Hz are called: (a) Ultrasonic vibrations (b) Infrasonic vibrations (c) Sonic vibrations
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vibration of frequency between 20Hz to 20000 Hz are called ultrasonic vibration
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vibration of frequency between 20 hz to 20000 hz are ultrasonic vibration
Explanation:
option a please mark as brainlist please
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