Multiple Choice
Brandon's teeth are stained from his constant coffee drinking, so his dentist recommended that he switch to a new electric toothbrush that not only brushes teeth very rapidly, but also uses sound to reduce plaque and staining. What kind of sound is most likely generated by Brandon's new toothbrush?
A) infrasound
B) ultrasound
C) pure tones
D) noise
Correct Answer:
Verified
Correct Answer:
Verified
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