Question

1. Which of the following statements is true?
(a) Sound produces vibrations.
(b) Vibrations produce sound.
2. The motion of a vibrating body is called_____
3. What will be the frequency of a sound which is produced when the vocal cords are tight and thin?
4. The speed of sound is maximum in___and minimum in___​

Answer 1

Answer:

1.option b

2. oscillation

3.If the vocal chord is tight and thin it will produce a high frequency sound or you can say that it will produce high pitch sound ( as pitch of the sound is directly depends on the frequency of the sound). a thick and loose vocal chord will produce the sound of low frequency or low pitch.

4. speed of the sound is maximum in solid medium speed of the sound in air (co2)

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