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

Question

Quizplus · Accepted Answer

Ultrasound waves have high frequency and can be used to disrupt plaque and stains on teeth, making them a likely sound generated by Brandon's new toothbrush. Infrasound has a low frequency and is not typically used in dental care. Pure tones are single frequency sounds and noise is a mixture of frequencies, neither of which are specifically tailored for dental care.

Brandon's Teeth Are Stained from His Constant Coffee Drinking, So