Lakhmir Singh Solutions Class 9 Physics Solutions for Exercise in Chapter 5 - Sound
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a) How is the sound produced? Explain with the help of an example.
b) How does sound from a sound-producing body travel through the air to reach our ears? Illustrate your answer with the help of a labelled diagram
a) Sound is produced when the object vibrates. For example, the production of sound from the strings of the guitar is possible because when the strings of the guitar are struck, there is vibrations generation which travels through air molecules and reaches our ear as sound.
b) Sound from sound-producing body travel through the air to reach our ears is explained with the help of a tuning fork. When a tuning fork is struck against a hard surface, there is the production of vibrations that travel through the air. These waves are longitudinal and move in the same direction as the movement of the sound. This is how the sound reaches our ears.
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