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Paragraph on “How do we hear sounds?” complete paragraph for Class 9, Class 10, Class 11 and Class 12
How do we hear sounds?
The human ear has three main parts—the outer ear, middle ear and inner ear. When a sound or noise is produced, the air particles next to its source, start vibrating and these vibrations travel in waves to the external ear which picks them up and funnels them towards the eardrum. The eardrum vibrates when the vibrations I hit it. Three tiny bones inside the middle ear pick up these vibrations and transfer it to the inner ear. Here these vibrations pass through a spiral tube full of a liquid called cochlea. From here the nerves convert the vibration into electrical signals and carry them to the brain where the sound is finally deciphered.