Which of the following statements are correct?
1. Sound is produced by vibrations.
2. Sound requires a medium for propagation.
3. Larynx is also known as voice box.
4. Eardrum converts sound vibrations into electrical signals.

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Q. Which of the following statements are correct?
(i) Sound is produced by vibrations.
(ii) Sound requires a medium for propagation.
(iii) Light and sound both require a medium for propagation.
(iv) Sound travels faster than light.

Statement 1: The middle part of human ear amplifies the sound vibrations coming from the eardrum.

Statement 2: The cochlea converts sound signals to electrical signals.

Q. Sound produced by the voice box is due to the vibrations of the:

Q. Sound propagates by producing vibrations in the medium.

Statement 1: Sound needs a medium for its propagation.
Statement 2: Sound cannot propagate through vacuum as vacuum does not have particles which can vibrate.

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Which of the following statements are correct?​ 1. Sound is produced by vibrations.​ 2. Sound requires a medium for propagation.​ 3. Larynx is also known as voice box.​ 4. Eardrum converts sound vibrations into electrical signals.

Which of the following statements are correct?
1. Sound is produced by vibrations.
2. Sound requires a medium for propagation.
3. Larynx is also known as voice box.
4. Eardrum converts sound vibrations into electrical signals.