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प्रश्न
How does sound travel in air?
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उत्तर
Sound travels in air as a longitudinal wave through the vibration of air molecules. When a sound source vibrates, it creates compressions (high pressure) and rarefactions (low pressure) that propagate through the air. These pressure variations transfer sound energy from one molecule to another, allowing the wave to travel. The sound reaches our ears, causing the eardrum to vibrate, which is then processed by the brain as sound. Since sound needs a medium, it cannot travel in a vacuum.
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संबंधित प्रश्न
State one important property of waves used for echo depth sounding.
The quality of a sound depends on the amplitude of wave.
Name three characteristics of a musical sound.
How is loudness related to the amplitude of wave?
Figure shows four waves A, B, C, and D
Name the wave which shows
(a) a note from a musical instrument,
(b) a soft note
(c) a shrill note.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
How does frequency affect a musical sound?
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
The same musical note when played on a piano and when played on a flute sounds different.
The loudness of a sound depends on its pitch.
