Question

ultrasonic waves can be purchased by ​

Answer 1

good morning mate.

I THINK YOU MISTYPED THE WORD PRODUCED TO PURCHASED.

So i have written the correct answer.

Ultrasonic sound can be produced by transducers which operate either by the piezoelectric effect or the magnetostrictive effect. The magnetostrictive transducers can be used to produce high intensity ultrasonic sound in the 20-40 kHz range for ultrasonic cleaning and other mechanical applications.