Advertisements
Advertisements
प्रश्न
Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
Advertisements
उत्तर
The simple experiment that a person can do to calculate the speed of sound in air is that a person stands at a known distance (d meter) from the cliff and fires a pistol and simultaneously start the stopwatch. He stops the stopwatch as soon as he hears an echo. The distance travelled by the sound during the time (t) seconds is 2d. So, speed of sound = distance travelled / time taken = 2d/t
The approximation made is that speed of sound remains same for the time when the experiment is taking place.
APPEARS IN
संबंधित प्रश्न
How does the loudness of sound produced depend on the vibrating area of the body ?
When we change a feeble sound to a loud sound, we increase its :
The speed of sound is more in hydrogen than in nitrogen. Is this statement true? Give a reason for your answer.
Select the correct option:
A part of longitudinal wave in which particles of the medium are farther away than the normal particles is called :
How do the following factor affect the speed of sound in air?
Temperature of air
The time interval between a lighting flash and the first sound of thunder was found to be 6 s. If the speed of sound in air is 330 ms-1, find the distance of the flash from the observer.
What is the SI unit of frequency?
What types of medium are required for sound to travel?
