Waves which range from 20 hz to 20,000 hz

A) cannot be heard by human beings.
B) is the hearing range for human beings.
C) is the hearing range of bat.
D) is the hearing range of dolphins.
E) is the hearing range of elephants.
F) is not hearing by Anyone.
G) is hearing by bat and elephants also.
H) is only heard by tiny creatures.

Dear student,
Please find below the answer:

The correct option is (B).
Waves which range from 20 Hz to 20,000 Hz is the hearing range for humans. A sound with a frequency below 20 Hz is called infrasonic sound. Whales, hippos, rhinos, etc. communicated in infrasonic sounds. A sound with a frequency above 20,000 Hz is called ultrasonic sound. It can be heard by bats.

Hope this clears your doubt.
Regards.
 

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