Advertisements
Advertisements
प्रश्न
How does sound travel in air?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Name the factor that determines Loudness of the sound heard.
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
What is an echo
What is longitudinal wave?
Figure shows two jars A and B containing water up to different heights. Which will produce sound of higher pitch when air is blown on them?
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
Name the subjective property of light related to its wavelength.
