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(Audible rays) Define the following:
Sonic
Infrasonic
Ultrasonic
Supersonic

Sagot :

Eralaiidn
infrasonic:
          this is relating to a frequency below the audibility range of human ear or simply produced by infrasonic waves or vibration.

sonic:
         relating to sound, sound waves, or the speed of sound.

ultrasonic:
         having a frequency above a human ear's audibility limit of about 20000 hertz- used of waves and vibrations

supersonic:
        relating to speeds from 1 to 5 times the speed of sound in air.