Physics
Grade-8
Easy
Question
The audible frequency range of an average human ear is ____.
- 20 Hz to 2 kHz
- 10 Hz to 2 kHz
- 20 Hz to 20 kHz
- 2 kHz to 20 kHz
Hint:
20Hz-20KHz.
The correct answer is: 20 Hz to 20 kHz
- The audible frequency range is 20Hz to 20KHz.
- Above or below this range, an average human ear cannot perceive sound.
- So, the correct option is c.
- Sound which has frequency less than 20Hz is called infrasound.
- Sound which has frequency more than 20KHz is called Ultrasound.
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