Ultrasonic waves are produced by making use of
ferromagnetic material
ferrimagnetic material
piezoelectric material
pyroelectric material
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-2 – 2017
Piezoelectric materials convert electrical energy into mechanical vibrations and vice versa. By applying a high-frequency alternating voltage across a piezoelectric crystal, it vibrates at that frequency, generating ultrasonic waves.