Physics, asked by sanjanasachinumale, 8 months ago

3. Frequency of ultrasound is...
Greater than 20 Hz
Less than 20 Hz
Greater than 20 Hz
Less than 20 Hz​

Answers

Answered by jahnavi6758
4

Answer:

greater than 20 hz

Explanation:

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Answered by ay4305
2

Ans->Greater than 20HZ.

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