Question

it is essential to change the tension on the vocal cords,as we produce different sound note from larynx​

Answer 1

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Different sound is produced when frequency of vibration of the source of sound is changed. In humans, vocal cords in larynx vibrate and produce sound.

So, we can say that it is essential to change the tension on the vocal cords to produce different sound notes from our larynx.

Answer 2

Different sound is produced when frequency of vibration of the source of sound is changed. In humans, vocal cords in larynx vibrate and produce sound.

So, we can say that it is essential to change the tension on the vocal cords to produce different sound notes from our larynx