Question

Give the range of ultrasonic vibrations. State two medical uses of ultrasonic vibrations.

Answer 1

Answer:

by animals

dog can hear up to the frequency of 40,000 heads as compared to humans who can hear upto 20000 hertz dogs can be specially trained to response to a whistle which produces ultraviolet vibration and is commonly called carrot and blessed the sound of whistle can be heard by humans

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Explanation:

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