Three different vibrating objects produce three types of sounds X Y and Z The sounds X and Y cannot - Science - Sound

Question

Three different vibrating objects produce three types of sounds X Y
and Z The sounds X and Y cannot be heard by men having normal range
of hearing but sound Z can we heard easily The sound X can be heard
by a bat whereas the sound Y can be heard by a rhinoceros What type
of sound are X,Y and Z?

Bakul Biswas · Accepted Answer

Dear Student,
X is the type of ultrasonic sounds
Y is the type of infrasonic sounds
Z is the type of sound which only the humans can hear i e, between
20 Hz and 20,000 Hz
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Three different vibrating objects produce three types of sounds X Y and Z. The sounds X and Y cannot be heard by men having normal range of hearing but sound Z can we heard easily. The sound X can be heard by a bat whereas the sound Y can be heard by a rhinoceros. What type of sound are X,Y and Z?