Advertisements
Advertisements
प्रश्न
Why do echoes produced in an empty auditorium usually decrease when it is full of audience?
एक पंक्ति में उत्तर
Advertisements
उत्तर
The audience in the auditorium as act obstructions in the path of sound waves; so they sound waves are not reflected much less and hence the echoes usually decrease.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Why are the ceilings of concert halls curved?
Define wavelength term in relation to a wave.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
What is a megaphone ? Name the principle on which a megaphone works.
What is a bulb horn ? Name the principle on which a bulb horn works.
What is the full form of SONAR?
Give a simple experiment to demonstrate the reflection of sound waves.
Write the approximate value of the speed of sound in iron.
Explain Reflection at curved surfaces.
Write short notes on reflection of sound waves from plane and curved surfaces.
