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Audible and Inaudible Sounds

Three differe...

Question

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

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Solution

X: Ultrasonic sound; Y: Infrasonic sound; Z: Audible sound

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