Advertisements
Advertisements
प्रश्न
Name two sound absorbing materials (or objects) which can make our big room less echoey.
एक पंक्ति में उत्तर
उत्तर
Curtains and carpets are two sound-absorbing materials that can make big rooms less echoey.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Name the principle on which a soundboard works.
What is the full form of RADAR?
What is meant by echo? What are the conditions necessary for its formation?
Why do echoes produced in an empty auditorium usually decrease when it is full of audience?
What are mechanical waves?
Write the approximate value of the speed of sound in air.
Why will an echo not be heard when the distance between the source of the sound and the reflecting surface is 10 m?
What do you understand by the ‘Echolocation system of Dolphins’?
Draw a diagram representing a wave of amplitude 4 cm and wavelength 2 m. If the frequency of the wave is 150 Hz, calculate its velocity.
What is mean by the reflection of sound?
