Q. Ultrasonic waves are produced by
A) Piezoelectric effect
B) Pettiro’s effect
C) Doppler’s effect
D) Coulomb’s law
Explanation
(a) Ultrasonic waves are produced by piezoelectric effect.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.