Physics
Elephants produce ……………sound :
- ultrasonic
- infrasonic
- supersonic
- none of the above
Sound
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Answer
infrasonic
Reason — Elephants and whales can produce infrasonic sounds of frequencies less than 20 Hz.
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Related Questions
The speed of ultrasound in air is :
- the same as audible sound
- less than audible sound
- more than audible sound
- equal to the speed of light
Echo-cardiography is used to obtain the image of
- lungs
- liver
- heart
- kidney
…………… can hear the highest frequency range of sound.
- Whales
- Dogs
- Cats
- Bats
Choose the correct statement :
- Ultrasonic waves travel faster than supersonic waves.
- Sonic waves travel faster than supersonic waves.
- Sonic waves travel faster than ultrasonic waves.
- Sonic and ultrasonic waves travel with the same speed.