Question

Task 3: Match the following:
Crystal Dynamics -
a frequency above the human ear's audibility limit 3
Hypersonic
the vibrational movement of atoms in the solid state
Ultrasonic
Speed of more than 5 Mach
Optics
concerned with the properties of sound.
Acoustics
studies the behaviour and properties of light
ion in the​

Answer 1

Answer:

a frequency above the human ear's audibility limit

Answer 2

Answer:

hyper sonic ultrasonic optics acoutics