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
Loudness is determined by the __________ of vibration.
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 ms-1
Name the factor that determines Pitch of the note.
State two conditions for an echo to take place
The pitch of sound depends on frequency.
Decibel is the unit of pitch of a sound.
The time period of a wave is 2 s. Its frequency is ..........
Name three characteristics of a musical sound.
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.
State three factors on which loundess of sound heard by a listener depends.
