Question

two different vibrating objects produce two different types of sounds X and Y. these sounds cannot be heard by a man having normal range of hearing.the sound X is used in hospital to break kidney stones and the sound Y is to that which is produced during the earth quake before the main shock wave is generated.which types of sounds are X and Y?​

Answer 1

Answer:

Explanation:Ultrasound is used for removing kidney stones.when ultrasound are targeted on such stone,the stones start vubrating at high frequency.the stone due to this vibratory motion. Breakdown into fine particles.ultrasounds and infrasounds are not audible to man.ultrasound have frequency more than 20kHz.

Infrasound have frequency below 20Hz, X is ultrasound. Y is infrasound, Z is audible sound.

Audible sound has frequency between 20Hz -20,000Hz.

Answer 2

Answer:

X is ultrasound and Y is infrasound

Explanation:

audible sounds have frequency 20Hz-20000Hz.