Lowest Frequency of Human Sound Hearing
The range of frequencies humans can typically hear is approximately 20 Hertz ($Hz$) to 20,000 Hertz ($Hz$). This range can vary slightly between individuals and tends to decrease with age, especially at the higher end.
The question asks for the lowest frequency of sound that can be heard by human beings. Based on the standard audibility range:
- Frequencies below 20 $Hz$ are known as infrasound and are generally not perceived by the human ear.
- Frequencies within the range of 20 $Hz$ to 20,000 $Hz$ are audible.
- The lowest threshold in this range is 20 $Hz$.
Comparing this to the given options:
- 50 $Hz$ is audible.
- 500 $Hz$ is audible.
- 20 $Hz$ is the lowest audible frequency.
- 10 $Hz$ is typically below the human hearing threshold.
Therefore, the lowest frequency of sound that can be heard by human beings is 20 $Hz$.
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Important Questions from Wave
Which of the following is correct?
I. Sound is a mechanical wave
II. Sound wave does not need any medium to propagate
At a particular temperature, sound propagates in ______ at the fastest speed .
The atmospheric green house effect is produced mainly by the absorption and re-emission of:
Which of the following are examples of electromagnetic waves?
a. Television waves
b. Ultraviolet rays
c. X-rays
d. Sun rays
When light passes from one medium into another medium, then the physical property which does not change is
