Science, asked by jabezgabriel78, 4 months ago

match the following

Ultrasonics - Frequency below 20Hz

Speed of sound in air - Needs material mediu

Infrasonics - 330ms-1

Sound propagation - Frequency more than 20000 Hz

Answers

Answered by chokharsalome

3

Explanation:

ultrasonic - frequency more than 20000hz

speed of sound in air - 330ms-1

Infrasonic - frequency below 20hz

sound propagation - needs material mediu

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