Question

I) How sound is produced by human? Explain

ii) Why sounds of children, woman and man vary from each other.

explain long ​

Answer 1

Explanation:

I) When human speaks, the muscles present in our larynx get stretched and the opening becomes narrower. When air is made to pass through the slit, the vocal cords vibrate. With more tightening of vocal cords, vibrations in it increase and hence higher volume of sound is produced.

lI) The vocal cord of a man is about 20 mm long. The vocal cord of a woman is about 5 mm long. The vocal cord of a child is very small. ... Due to the difference in length of vocal cords, the sounds produced by the three is different.

Answer 2

Answer:

l)The vocal folds produce sound when they come together and then vibrate as air passes through them during exhalation of air from the lungs. This vibration produces the sound wave for your voice. In order for the sound to be clear and not raspy or hoarse, the vocal folds must vibrate together symmetrically and regularly.

ll)Voice of Men, Women and children are

different.

Reason:

1. Men have vocal cords about 20mm length.

2. Women have vocal cords about 5mm long.

3. Children have still very short vocal chord.

4.As the frequency of vibration of vocal cord

increases, pitch of sound produced by it

increases.

5. So, When, we go from man to woman, and

then child, the frequency of vibration of their

vocal cords increases due to which the pitch

of their voices increases.